Fix container startup with mounted config

.dockerignore

@@ -4,3 +4,4 @@ Dockerfile
 docker-compose.yml
 .env
 *.exe
+config/

.env.example

@@ -1,7 +1,6 @@
 # Server Port & Configuration
 PORT=8080
 WEB_DIR=public
-BOOKED_DATES_FILE=booked_dates.json
 
 # SMTP Configuration
 SMTP_HOST=mail.example.com

.gitattributes

@@ -0,0 +1 @@
+*.sh text eol=lf

.github/prompts/13-config-and-booking-storage.prompt.md

@@ -0,0 +1,75 @@
+---
+agent: agent
+description: Split Date Wizard JSON persistence into a fixed config directory, store complete structured bookings, and skip the name step when no names are configured.
+---
+
+Implement or review the Date Wizard configuration and booking persistence layout. Preserve the existing Go server, authenticated admin behavior, public booking flow, German user-facing language, and Docker deployment conventions.
+
+## Fixed config directory
+
+All JSON data files belong under one project config directory:
+
+- `config/appsettings.json`: admin password and optional configured names.
+- `config/activities.json`: activity definitions.
+- `config/dates_available.json`: available date definitions.
+- `config/dates_booked.json`: structured booking records.
+
+The application must use these fixed paths and must not require one environment variable per JSON file. Do not add or retain `ACTIVITIES_FILE`, `AVAILABLE_DATES_FILE`, or `BOOKED_DATES_FILE` configuration requirements. The runtime paths should resolve to `/app/config/...` in the container and `config/...` during local execution.
+
+Keep legacy read compatibility where practical for existing deployments, but new writes must use the new fixed files and names. The old root-level JSON files should not remain as the active project data source.
+
+## Docker Compose deployment
+
+The Compose deployment must expose one persistent volume only:
+
+```yaml
+volumes:
+  - /docker/data/date:/app/config
+```
+
+The container must not require individual file mounts or data-file environment variables. Startup must provision missing files from image defaults when the mounted config directory is empty. Preserve the existing `.env` usage for server and SMTP settings.
+
+The Dockerfile must include the config templates in the image, and the startup script must initialize the four files beneath `/app/config` without overwriting existing host data.
+
+Document the host initialization and migration process, including migration from the old `booked_dates.json` format.
+
+## Structured booking records
+
+When a booking is submitted, record one object per booked date in `config/dates_booked.json` with:
+
+- `bookedAt`: UTC booking timestamp in a machine-readable format.
+- `date`: the selected date.
+- `dateType`: the selected date duration/type.
+- `name`: the selected person name, or empty when the name step was skipped.
+- `activities`: every selected activity with its `name`, `icon`, and `type`.
+
+Do not persist `customDescription` in the booked activity records. Custom descriptions may remain transient in the submission payload and may still be used for the notification email and generated iCalendar content.
+
+Avoid duplicate booking records for the same date. Existing date-only booked-date consumers may continue receiving a list of date strings through the public API. Preserve booked-date protection in the admin date editor.
+
+## Name page shortcut
+
+When `appsettings.json` contains an empty `names` array:
+
+- Skip the name-selection page entirely after activity selection.
+- Store an empty selected name and navigate directly to checkout.
+- Checkout must accept an empty name and display a clear fallback such as `Nicht angegeben`.
+
+When names are configured, preserve the existing name-selection page and selection behavior.
+
+## Validation
+
+Before editing, inspect the current settings model, file paths, booking submission payload, name-page navigation, Dockerfile, Compose file, startup script, and existing prompt conventions.
+
+After editing:
+
+1. Run `gofmt` on changed Go files.
+2. Run the available Go test/build command.
+3. Run JavaScript syntax checks for changed frontend scripts.
+4. Validate all config JSON files.
+5. Check diagnostics and whitespace errors.
+6. Smoke-test the public settings and booked-date APIs with the fixed local config paths.
+7. Verify that Compose has one config-directory volume and no per-file data environment variables.
+8. Do not overwrite user-edited config data or unrelated fixtures.
+
+When reporting the result, summarize the fixed paths, Docker contract, booking JSON shape, name-page behavior, migration compatibility, and validation results.

.github/prompts/14-admin-booking-management.prompt.md

@@ -0,0 +1,77 @@
+---
+agent: agent
+description: Manage booked dates in the authenticated Date Wizard admin page, including newest-first display, activity and booking metadata, and confirmation-gated deletion.
+---
+
+Implement or review booked-date management for the Date Wizard application. Preserve the existing Go server, JSON booking persistence, authenticated admin behavior, German user-facing language, and visual conventions.
+
+## Admin navigation
+
+Add a separate booking-management view to the authenticated `/admin` page. Keep it between the existing `Termine` and `Aktivitäten` navigation items. The view is reached through a visible navigation button and must remain responsive on narrow screens.
+
+The booking view is initially read-only except for deleting a booking. Do not add editing controls for the booking date, duration, name, activities, or booking timestamp.
+
+## Booking list
+
+Load bookings through an authenticated admin endpoint and display them newest first using the booking creation timestamp `bookedAt`.
+
+Each booking entry must:
+
+- Display the selected date as the primary information, formatted in German.
+- Display every selected activity when one or more activities are present.
+- Display each activity's stored icon and name, including the single-activity case and multiple-activity case.
+- Display the booker's name only when a non-empty name is available.
+- Display the date and time at which the booking was created from `bookedAt`.
+- Display a useful empty state when no bookings exist.
+- Render all values as text content rather than injecting untrusted booking data as HTML.
+
+Keep legacy records with missing optional values displayable. Do not fabricate a booking timestamp when `bookedAt` is empty.
+
+## Backend API
+
+Use the existing authenticated Go HTTP API and booking storage helpers.
+
+- Add or preserve an authenticated `GET /api/admin/bookings` endpoint.
+- Return structured booking records containing `bookedAt`, `date`, `dateType`, `name`, and `activities`.
+- Sort records newest first by `bookedAt`, while keeping records with missing timestamps valid.
+- Do not expose the full booking records through the public `/api/booked-dates` endpoint; that endpoint may continue returning only date strings.
+- Reject unauthenticated requests with the existing JSON authentication response.
+- Return appropriate errors for malformed requests and storage failures.
+
+## Booking deletion
+
+Provide one `Termin löschen` button for every booking entry.
+
+- Ask for explicit confirmation before sending a delete request.
+- Include the formatted booking date in the confirmation question.
+- Add an authenticated `DELETE /api/admin/bookings` endpoint accepting `{ "date": "YYYY-MM-DD" }`.
+- Delete only the matching booking record from `config/dates_booked.json`.
+- Return a not-found response when the requested booking does not exist.
+- Keep the delete button disabled while the request is in progress.
+- Reload the booking list after successful deletion.
+- Remove the deleted date from the admin calendar's booked-date state and refresh the affected date displays.
+- Keep confirmation and deletion errors visible to the administrator.
+- Do not delete or modify any other booking record.
+
+## Persistence and safety
+
+Preserve the existing structured booking format and booking uniqueness rule: at most one booking record exists for a date. Use the existing booking mutex and atomic JSON write helper for deletion. Do not modify `config/appsettings.json` or expose the admin password.
+
+## Implementation and validation
+
+Before editing, inspect the existing admin HTML, JavaScript, CSS, Go handlers, booking model, storage helpers, public booked-date endpoint, and prompt conventions. Reuse existing request helpers and styling patterns.
+
+After editing:
+
+1. Run `gofmt` on changed Go files.
+2. Run the available Go test or build command.
+3. Run a JavaScript syntax check for changed scripts when Node.js is available.
+4. Check diagnostics for changed files.
+5. Verify unauthenticated access still shows the login view.
+6. Verify the booking tab appears between `Termine` and `Aktivitäten`.
+7. Verify newest-first ordering, date display, single and multiple activity display with icons, optional name display, and booking timestamp display.
+8. Verify the delete confirmation prevents deletion when cancelled and deletes only the confirmed booking when accepted.
+9. Verify the calendar booked state updates after deletion.
+10. Do not alter `config/appsettings.json` or unrelated fixtures when documenting or committing this feature.
+
+When reporting the result, summarize changed files, user-visible behavior, API behavior, persistence effects, and validation commands that passed or failed.

Dockerfile

@@ -18,11 +18,10 @@ WORKDIR /app
 # Copy binary and static front-end assets
 COPY --from=builder /app/server /app/server
 COPY --from=builder /app/public /app/public
-COPY --from=builder /app/appsettings.json /app/appsettings.default.json
 COPY start.sh /app/start.sh
 
-RUN chmod +x /app/start.sh
+RUN mkdir -p /app/config && chmod +x /app/start.sh
 
 EXPOSE 8080
 
-ENTRYPOINT ["/app/start.sh"]
+ENTRYPOINT ["/bin/sh", "/app/start.sh"]

README.md

@@ -8,8 +8,12 @@ Eine spielerische Web-App ("Choose Your Own Adventure") zum Planen gemeinsamer D
 
 ```text
 datetest/
+├── config/                 # Persistente JSON-Konfiguration und Buchungen
+│   ├── appsettings.json    # Admin-Passwort und optionale Namen
+│   ├── activities.json     # Aktivitäten
+│   ├── dates_available.json # Verfügbare Termine
+│   └── dates_booked.json   # Strukturierte Buchungen
 ├── public/                 # Statische Webseiten & Assets
-│   ├── appsettings.json    # Konfiguration der Aktivitäten & Termine
 │   ├── index.html          # Startseite ("Willst du mit mir gehen?")
 │   ├── datetime.html/.js   # Datumsauswahl (Kalender)
 │   ├── activity.html/.js   # Aktivitätsauswahl
@@ -41,7 +45,6 @@ Trage in der `.env` deine Server- und SMTP-Zugangsdaten ein:
 | :--- | :--- | :--- |
 | `PORT` | HTTP-Port des Go-Servers | `8080` |
 | `WEB_DIR` | Verzeichnis der statischen Assets | `public` |
-| `BOOKED_DATES_FILE` | Speicherpfad für bereits gebuchte Termine | `booked_dates.json` |
 | `SMTP_HOST` | Postausgangsserver (SMTP) | `mail.example.com` |
 | `SMTP_PORT` | SMTP-Port (Standard meist 587 oder 465) | `587` |
 | `SMTP_USER` | Benutzername / E-Mail für SMTP-Auth | `absender@example.com` |
@@ -51,18 +54,29 @@ Trage in der `.env` deine Server- und SMTP-Zugangsdaten ein:
 
 *(Hinweis: Wenn `SMTP_HOST` oder `TO_EMAIL` leer bleiben, läuft der Server im Testmodus ohne E-Mail-Versand.)*
 
-### 2. Aktivitäten & Termine anpassen (`appsettings.json`)
+### 2. Einstellungen und Daten
 
-Passe in `appsettings.json` die zur Auswahl stehenden Aktivitäten, verfügbaren Tage und das Admin-Passwort an:
+Die persistenten Daten liegen in getrennten JSON-Dateien:
 
 - **`adminPassword`**: Passwort für die Terminverwaltung unter `/admin`. Ändere den Standardwert `change-me`, bevor du die Anwendung veröffentlichst.
-- **`activities`**: Liste von Objekten mit `name`, `icon` (Unicode Emoji), `type` (`short` oder `long`) und optional `disabled` (`true` blendet die Aktivität vorübergehend aus).
+- **`activities.json`**: Liste von Objekten mit `name`, `icon` (Unicode Emoji), `type` (`short`, `long` oder `custom`) und optional `disabled` (`true` blendet die Aktivität vorübergehend aus).
-- **`availableDates`**: Liste von verfügbaren Tagen mit `date` (`YYYY-MM-DD`) und `type` (`short` oder `long`).
+- **`dates_available.json`**: Liste von verfügbaren Tagen mit `date` (`YYYY-MM-DD`) und `type` (`short` oder `long`).
-- **`names`**: Optional vordefinierte Namen zur Auswahl (ist die Liste leer, wird ein Standard-Fallback angeboten).
+- **`dates_booked.json`**: Strukturierte Buchungen mit `bookedAt`, `date`, `dateType`, `name` und den ausgewählten Aktivitäten inklusive Name, Typ und Icon.
+- **`names`**: Optional vordefinierte Namen zur Auswahl (ist die Liste leer, wird die Namensseite übersprungen).
 
 Die Termin- und Aktivitätenlisten lassen sich über die passwortgeschützte Verwaltung unter `http://localhost:8080/admin` bearbeiten. Das Passwort bleibt dabei auf dem Server und wird nicht an Besucher ausgeliefert.
 
-Bei Docker Compose werden `appsettings.json` und `booked_dates.json` dauerhaft unter `/docker/data/date` gespeichert. Beim ersten Start legt der Container die Einstellungen dort aus der im Image enthaltenen Vorlage an. Ändere danach den Standardwert `change-me` in `/docker/data/date/appsettings.json` oder übernimm vor dem ersten Start eine vorbereitete Konfigurationsdatei.
+Bei Docker Compose wird `/docker/data/date` als ein Volume nach `/app/config` eingebunden. Die vier JSON-Dateien müssen dort vor dem ersten Start vorhanden sein. Du kannst sie aus dem Projektordner initialisieren:
+
+```bash
+mkdir -p /docker/data/date
+cp config/appsettings.json /docker/data/date/appsettings.json
+cp config/activities.json /docker/data/date/activities.json
+cp config/dates_available.json /docker/data/date/dates_available.json
+cp config/dates_booked.json /docker/data/date/dates_booked.json
+```
+
+Wenn bisher `/docker/data/date/booked_dates.json` verwendet wurde, übernimm die alten Buchungsdaten zuerst in `dates_booked.json`. Das neue Format speichert Buchungen als Objekte statt als reine Datumsstrings.
 
 ---
 

appsettings.json

@@ -1,190 +0,0 @@
-{
-  "activities": [
-    {
-      "name": "Picknick auf der Wiese",
-      "icon": "🧺",
-      "type": "short"
-    },
-    {
-      "name": "Cocktailabend zu zweit",
-      "icon": "🍸",
-      "type": "long"
-    },
-    {
-      "name": "Massage zu Hause",
-      "icon": "💆",
-      "type": "short"
-    },
-    {
-      "name": "Ausgedehnte Wanderung",
-      "icon": "🥾",
-      "type": "long"
-    },
-    {
-      "name": "Kinofilm",
-      "icon": "🎬",
-      "type": "short"
-    },
-    {
-      "name": "Sushi selber machen",
-      "icon": "🍣",
-      "type": "short"
-    },
-    {
-      "name": "Untersetzer aus Ton basteln",
-      "icon": "🪨",
-      "type": "long"
-    },
-    {
-      "name": "Freizeitpark",
-      "icon": "🎢",
-      "type": "long"
-    },
-    {
-      "name": "Spaziergang im Wald",
-      "icon": "🌲",
-      "type": "short"
-    },
-    {
-      "name": "Kirschbier Tasting",
-      "icon": "🍒",
-      "type": "short"
-    },
-    {
-      "name": "Nudeln selber machen",
-      "icon": "🍜",
-      "type": "long"
-    },
-    {
-      "name": "Chillen im Freibad",
-      "icon": "🏊",
-      "type": "short"
-    },
-    {
-      "name": "Film zu Hause + Essen bestellen",
-      "icon": "🛋️",
-      "type": "long"
-    },
-    {
-      "name": "Squash spielen",
-      "icon": "🏸",
-      "type": "short"
-    },
-    {
-      "name": "Essen im Namaste",
-      "icon": "🍛",
-      "type": "short"
-    },
-    {
-      "name": "Museum für Gegenwartskunst",
-      "icon": "🖼️",
-      "type": "short"
-    },
-    {
-      "name": "Playstation Co-Op",
-      "icon": "🎮",
-      "type": "short"
-    },
-    {
-      "name": "Etwas eigenes",
-      "icon": "✏️",
-      "type": "custom"
-    }
-  ],
-  "availableDates": [
-    {
-      "date": "2026-08-18",
-      "type": "short"
-    },
-    {
-      "date": "2026-08-20",
-      "type": "short"
-    },
-    {
-      "date": "2026-08-22",
-      "type": "long"
-    },
-    {
-      "date": "2026-08-23",
-      "type": "long"
-    },
-    {
-      "date": "2026-08-24",
-      "type": "short"
-    },
-    {
-      "date": "2026-08-26",
-      "type": "short"
-    },
-    {
-      "date": "2026-08-27",
-      "type": "short"
-    },
-    {
-      "date": "2026-08-28",
-      "type": "short"
-    },
-    {
-      "date": "2026-08-29",
-      "type": "long"
-    },
-    {
-      "date": "2026-08-31",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-01",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-07",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-08",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-14",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-15",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-17",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-18",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-25",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-26",
-      "type": "long"
-    },
-    {
-      "date": "2026-09-27",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-28",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-29",
-      "type": "short"
-    },
-    {
-      "date": "2026-09-30",
-      "type": "short"
-    }
-  ],
-  "names": [],
-  "adminPassword": "change-me"
-}

config/activities.json

@@ -0,0 +1,88 @@
+[
+  {
+    "name": "Cocktailabend zu zweit",
+    "icon": "🍸",
+    "type": "long"
+  },
+  {
+    "name": "Massage zu Hause",
+    "icon": "💆",
+    "type": "short"
+  },
+  {
+    "name": "Ausgedehnte Wanderung",
+    "icon": "🌲",
+    "type": "long"
+  },
+  {
+    "name": "Kinofilm gucken",
+    "icon": "🎬",
+    "type": "short"
+  },
+  {
+    "name": "Sushi selber machen",
+    "icon": "🍣",
+    "type": "short"
+  },
+  {
+    "name": "Untersetzer aus Ton basteln",
+    "icon": "🪨",
+    "type": "long"
+  },
+  {
+    "name": "Freizeitpark",
+    "icon": "🎢",
+    "type": "long"
+  },
+  {
+    "name": "Spaziergang im Wald",
+    "icon": "🌲",
+    "type": "short"
+  },
+  {
+    "name": "Kirschbier Tasting",
+    "icon": "🍒",
+    "type": "short"
+  },
+  {
+    "name": "Nudeln selber machen",
+    "icon": "🍜",
+    "type": "long"
+  },
+  {
+    "name": "Chillen im Freibad",
+    "icon": "🏊",
+    "type": "short",
+    "disabled": true
+  },
+  {
+    "name": "Film zu Hause + Essen bestellen",
+    "icon": "🛋️",
+    "type": "long"
+  },
+  {
+    "name": "Squash spielen",
+    "icon": "🏸",
+    "type": "short"
+  },
+  {
+    "name": "Essen im Namaste",
+    "icon": "🍛",
+    "type": "short"
+  },
+  {
+    "name": "Museum für Gegenwartskunst",
+    "icon": "🖼️",
+    "type": "short"
+  },
+  {
+    "name": "Playstation Co-Op",
+    "icon": "🎮",
+    "type": "short"
+  },
+  {
+    "name": "Etwas eigenes",
+    "icon": "✏️",
+    "type": "custom"
+  }
+]

config/appsettings.json

@@ -0,0 +1,4 @@
+{
+  "names": [],
+  "adminPassword": "change-me"
+}

config/dates_available.json

@@ -0,0 +1,226 @@
+[
+  {
+    "date": "2026-08-18",
+    "type": "short"
+  },
+  {
+    "date": "2026-08-20",
+    "type": "short"
+  },
+  {
+    "date": "2026-08-22",
+    "type": "long"
+  },
+  {
+    "date": "2026-08-23",
+    "type": "long"
+  },
+  {
+    "date": "2026-08-24",
+    "type": "short"
+  },
+  {
+    "date": "2026-08-26",
+    "type": "short"
+  },
+  {
+    "date": "2026-08-27",
+    "type": "short"
+  },
+  {
+    "date": "2026-08-28",
+    "type": "short"
+  },
+  {
+    "date": "2026-08-29",
+    "type": "long"
+  },
+  {
+    "date": "2026-08-31",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-01",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-07",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-08",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-14",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-15",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-17",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-18",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-25",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-26",
+    "type": "long"
+  },
+  {
+    "date": "2026-09-27",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-28",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-29",
+    "type": "short"
+  },
+  {
+    "date": "2026-09-30",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-02",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-06",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-09",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-11",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-12",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-13",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-14",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-16",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-26",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-27",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-28",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-29",
+    "type": "short"
+  },
+  {
+    "date": "2026-10-30",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-02",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-03",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-04",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-05",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-06",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-08",
+    "type": "long"
+  },
+  {
+    "date": "2026-11-09",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-10",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-11",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-12",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-17",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-18",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-23",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-24",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-25",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-26",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-27",
+    "type": "short"
+  },
+  {
+    "date": "2026-11-28",
+    "type": "long"
+  },
+  {
+    "date": "2026-11-29",
+    "type": "long"
+  },
+  {
+    "date": "2026-11-30",
+    "type": "short"
+  }
+]

config/dates_booked.json

@@ -0,0 +1 @@
+[]

docker-compose.yml

@@ -9,11 +9,8 @@ services:
       - proxy
     env_file:
       - .env
-    environment:
-      SETTINGS_FILE: /data/appsettings.json
-      BOOKED_DATES_FILE: /data/booked_dates.json
     volumes:
-      - /docker/data/date:/data
+      - /docker/data/date:/app/config
     labels:
       - "traefik.enable=true"
       - "traefik.http.routers.date-wizard.rule=Host(`date.allen.beging.de`) || Host(`date.beging.de`)"

main.go

@@ -11,6 +11,7 @@ import (
 	"net/http"
 	"net/smtp"
 	"os"
+	"path/filepath"
 	"sort"
 	"strings"
 	"sync"
@@ -44,10 +45,24 @@ type AvailableDate struct {
 }
 
 type AppSettings struct {
-	Activities     []Activity      `json:"activities"`
-	AvailableDates []AvailableDate `json:"availableDates"`
 	Names          []string        `json:"names"`
 	AdminPassword  string          `json:"adminPassword"`
+	Activities     []Activity      `json:"-"`
+	AvailableDates []AvailableDate `json:"-"`
+}
+
+type Booking struct {
+	BookedAt   string            `json:"bookedAt"`
+	Date       string            `json:"date"`
+	DateType   string            `json:"dateType"`
+	Name       string            `json:"name"`
+	Activities []BookingActivity `json:"activities"`
+}
+
+type BookingActivity struct {
+	Name string `json:"name"`
+	Icon string `json:"icon"`
+	Type string `json:"type"`
 }
 
 type PublicSettings struct {
@@ -61,6 +76,7 @@ type passwordRequest struct {
 }
 
 var settingsMu sync.Mutex
+var bookingsMu sync.Mutex
 var sessionsMu sync.Mutex
 var adminSessions = make(map[string]time.Time)
 
@@ -85,6 +101,7 @@ func main() {
 	http.HandleFunc("/api/admin/dates", handleAdminDates)
 	http.HandleFunc("/api/admin/dates/bulk", handleAdminBulkDates)
 	http.HandleFunc("/api/admin/activities", handleAdminActivities)
+	http.HandleFunc("/api/admin/bookings", handleAdminBookings)
 	http.HandleFunc("/admin", handleAdminPage)
 
 	// Serve static files from webDir directory
@@ -271,6 +288,65 @@ func handleAdminActivities(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func handleAdminBookings(w http.ResponseWriter, r *http.Request) {
+	if !isAdminRequest(r) {
+		writeJSON(w, http.StatusUnauthorized, Response{Success: false, Message: "Anmeldung erforderlich."})
+		return
+	}
+	switch r.Method {
+	case http.MethodGet:
+		bookings, err := getBookings()
+		if err != nil {
+			log.Printf("Error reading bookings: %v", err)
+			http.Error(w, "Bookings could not be loaded", http.StatusInternalServerError)
+			return
+		}
+		sort.SliceStable(bookings, func(first, second int) bool {
+			return bookings[first].BookedAt > bookings[second].BookedAt
+		})
+		writeJSON(w, http.StatusOK, bookings)
+	case http.MethodDelete:
+		var request struct {
+			Date string `json:"date"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&request); err != nil || strings.TrimSpace(request.Date) == "" {
+			writeJSON(w, http.StatusBadRequest, Response{Success: false, Message: "Bitte gib ein Datum an."})
+			return
+		}
+		request.Date = strings.TrimSpace(request.Date)
+
+		bookingsMu.Lock()
+		defer bookingsMu.Unlock()
+		bookings, err := readBookings()
+		if err != nil {
+			log.Printf("Error reading bookings: %v", err)
+			http.Error(w, "Bookings could not be loaded", http.StatusInternalServerError)
+			return
+		}
+		filtered := make([]Booking, 0, len(bookings))
+		deleted := false
+		for _, booking := range bookings {
+			if booking.Date == request.Date {
+				deleted = true
+				continue
+			}
+			filtered = append(filtered, booking)
+		}
+		if !deleted {
+			writeJSON(w, http.StatusNotFound, Response{Success: false, Message: "Gebuchter Termin wurde nicht gefunden."})
+			return
+		}
+		if err := writeJSONFile(getBookedDatesFilePath(), filtered); err != nil {
+			log.Printf("Error deleting booking: %v", err)
+			http.Error(w, "Booking could not be deleted", http.StatusInternalServerError)
+			return
+		}
+		writeJSON(w, http.StatusOK, Response{Success: true, Message: "Gebuchter Termin gelöscht."})
+	default:
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+	}
+}
+
 func handleAdminLogin(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
@@ -486,11 +562,7 @@ func handleAdminBulkDates(w http.ResponseWriter, r *http.Request) {
 }
 
 func getSettingsFilePath() string {
-	path := os.Getenv("SETTINGS_FILE")
+	return filepath.Join("config", "appsettings.json")
-	if path == "" {
-		path = "appsettings.json"
-	}
-	return path
 }
 
 func readSettings() (AppSettings, error) {
@@ -508,9 +580,42 @@ func readSettingsFile() (AppSettings, error) {
 	if err := json.Unmarshal(data, &settings); err != nil {
 		return settings, err
 	}
+	var legacy struct {
+		Activities     []Activity      `json:"activities"`
+		AvailableDates []AvailableDate `json:"availableDates"`
+	}
+	if err := json.Unmarshal(data, &legacy); err != nil {
+		return settings, err
+	}
+	settings.Activities = legacy.Activities
+	settings.AvailableDates = legacy.AvailableDates
+	if activities, found, err := readOptionalJSON(getActivitiesFilePath(), &[]Activity{}); err != nil {
+		return settings, err
+	} else if found {
+		settings.Activities = *activities.(*[]Activity)
+	}
+	if dates, found, err := readOptionalJSON(getAvailableDatesFilePath(), &[]AvailableDate{}); err != nil {
+		return settings, err
+	} else if found {
+		settings.AvailableDates = *dates.(*[]AvailableDate)
+	}
 	return settings, nil
 }
 
+func readOptionalJSON(path string, target interface{}) (interface{}, bool, error) {
+	data, err := os.ReadFile(path)
+	if os.IsNotExist(err) {
+		return target, false, nil
+	}
+	if err != nil {
+		return target, false, err
+	}
+	if err := json.Unmarshal(data, target); err != nil {
+		return target, false, err
+	}
+	return target, true, nil
+}
+
 func updateAvailableDates(update func([]AvailableDate) ([]AvailableDate, error)) error {
 	settingsMu.Lock()
 	defer settingsMu.Unlock()
@@ -526,15 +631,7 @@ func updateAvailableDates(update func([]AvailableDate) ([]AvailableDate, error))
 	sort.Slice(dates, func(i, j int) bool { return dates[i].Date < dates[j].Date })
 	settings.AvailableDates = dates
 
-	data, err := json.MarshalIndent(settings, "", "  ")
+	return writeJSONFile(getAvailableDatesFilePath(), dates)
-	if err != nil {
-		return err
-	}
-	temporaryPath := getSettingsFilePath() + ".tmp"
-	if err := os.WriteFile(temporaryPath, data, 0600); err != nil {
-		return err
-	}
-	return os.Rename(temporaryPath, getSettingsFilePath())
 }
 
 func updateActivities(update func([]Activity) ([]Activity, error)) error {
@@ -551,15 +648,27 @@ func updateActivities(update func([]Activity) ([]Activity, error)) error {
 	}
 	settings.Activities = activities
 
-	data, err := json.MarshalIndent(settings, "", "  ")
+	return writeJSONFile(getActivitiesFilePath(), activities)
+}
+
+func writeJSONFile(path string, value interface{}) error {
+	data, err := json.MarshalIndent(value, "", "  ")
 	if err != nil {
 		return err
 	}
-	temporaryPath := getSettingsFilePath() + ".tmp"
+	temporaryPath := path + ".tmp"
 	if err := os.WriteFile(temporaryPath, data, 0600); err != nil {
 		return err
 	}
-	return os.Rename(temporaryPath, getSettingsFilePath())
+	return os.Rename(temporaryPath, path)
+}
+
+func getActivitiesFilePath() string {
+	return filepath.Join("config", "activities.json")
+}
+
+func getAvailableDatesFilePath() string {
+	return filepath.Join("config", "dates_available.json")
 }
 
 func validateActivity(activity Activity) error {
@@ -577,11 +686,22 @@ func validateActivity(activity Activity) error {
 
 func enabledActivities(activities []Activity) []Activity {
 	enabled := make([]Activity, 0, len(activities))
+	var customActivity *Activity
 	for _, activity := range activities {
+		if activity.Type == "custom" {
+			if !activity.Disabled {
+				custom := activity
+				customActivity = &custom
+			}
+			continue
+		}
 		if !activity.Disabled {
 			enabled = append(enabled, activity)
 		}
 	}
+	if customActivity != nil {
+		enabled = append(enabled, *customActivity)
+	}
 	return enabled
 }
 
@@ -665,7 +785,7 @@ func handleSubmit(w http.ResponseWriter, r *http.Request) {
 
 	log.Printf("Received survey submission from %s for date %s (%s)", payload.Name, payload.Date, payload.Activity)
 
-	if err := recordBookedDate(payload.Date); err != nil {
+	if err := recordBooking(payload); err != nil {
 		log.Printf("Error recording booked date: %v", err)
 	}
 
@@ -706,65 +826,98 @@ func handleBookedDates(w http.ResponseWriter, r *http.Request) {
 }
 
 func getBookedDatesFilePath() string {
-	path := os.Getenv("BOOKED_DATES_FILE")
+	return filepath.Join("config", "dates_booked.json")
-	if path == "" {
-		path = "booked_dates.json"
-	}
-	return path
 }
 
 func getBookedDates() ([]string, error) {
-	filePath := getBookedDatesFilePath()
+	bookings, err := getBookings()
-	file, err := os.Open(filePath)
 	if err != nil {
-		if os.IsNotExist(err) {
-			return []string{}, nil
-		}
 		return nil, err
 	}
-	defer file.Close()
+	dates := make([]string, 0, len(bookings))
-
+	for _, booking := range bookings {
-	var rawDates []string
+		if trimmed := strings.TrimSpace(booking.Date); trimmed != "" {
-	if err := json.NewDecoder(file).Decode(&rawDates); err != nil {
-		return []string{}, nil
-	}
-
-	dates := make([]string, 0, len(rawDates))
-	for _, d := range rawDates {
-		trimmed := strings.TrimSpace(d)
-		if trimmed != "" {
 			dates = append(dates, trimmed)
 		}
 	}
 	return dates, nil
 }
 
-func recordBookedDate(dateStr string) error {
+func getBookings() ([]Booking, error) {
-	trimmedDate := strings.TrimSpace(dateStr)
+	bookingsMu.Lock()
-	if trimmedDate == "" {
+	defer bookingsMu.Unlock()
-		return nil
+	return readBookings()
 }
 
-	dates, err := getBookedDates()
+func readBookings() ([]Booking, error) {
-	if err != nil {
-		dates = []string{}
-	}
-
-	for _, d := range dates {
-		if d == trimmedDate {
-			return nil
-		}
-	}
-
-	dates = append(dates, trimmedDate)
-
 	filePath := getBookedDatesFilePath()
-	data, err := json.MarshalIndent(dates, "", "  ")
+	data, err := os.ReadFile(filePath)
+	if os.IsNotExist(err) {
+		legacyPath := os.Getenv("LEGACY_BOOKED_DATES_FILE")
+		if legacyPath == "" {
+			legacyPath = filepath.Join("config", "booked_dates.json")
+		}
+		data, err = os.ReadFile(legacyPath)
+		if os.IsNotExist(err) {
+			return []Booking{}, nil
+		}
+	}
 	if err != nil {
-		return err
+		return nil, err
+	}
+	var bookings []Booking
+	if err := json.Unmarshal(data, &bookings); err == nil {
+		return bookings, nil
 	}
 
-	return os.WriteFile(filePath, data, 0644)
+	var legacyDates []string
+	if err := json.Unmarshal(data, &legacyDates); err != nil {
+		return nil, err
+	}
+	bookings = make([]Booking, 0, len(legacyDates))
+	for _, date := range legacyDates {
+		if trimmed := strings.TrimSpace(date); trimmed != "" {
+			bookings = append(bookings, Booking{Date: trimmed})
+		}
+	}
+	return bookings, nil
+}
+
+func recordBooking(payload SurveyPayload) error {
+	date := strings.TrimSpace(payload.Date)
+	if date == "" {
+		return nil
+	}
+
+	bookingsMu.Lock()
+	defer bookingsMu.Unlock()
+	bookings, err := readBookings()
+	if err != nil {
+		bookings = []Booking{}
+	}
+	for _, booking := range bookings {
+		if booking.Date == date {
+			return nil
+		}
+	}
+
+	bookingActivities := make([]BookingActivity, 0, len(payload.Activities))
+	for _, activity := range payload.Activities {
+		bookingActivities = append(bookingActivities, BookingActivity{
+			Name: activity.Name,
+			Icon: activity.Icon,
+			Type: activity.Type,
+		})
+	}
+
+	bookings = append(bookings, Booking{
+		BookedAt:   time.Now().UTC().Format(time.RFC3339),
+		Date:       date,
+		DateType:   payload.DateType,
+		Name:       payload.Name,
+		Activities: bookingActivities,
+	})
+	return writeJSONFile(getBookedDatesFilePath(), bookings)
 }
 
 func enableCORS(w http.ResponseWriter, r *http.Request) bool {

public/admin.css

@@ -262,6 +262,68 @@
   color: var(--color-text-light);
 }
 
+.bookings-list {
+  display: grid;
+  gap: 14px;
+  margin: 18px 0 0;
+  padding: 0;
+  list-style: none;
+}
+
+.booking-row {
+  display: grid;
+  gap: 8px;
+  padding: 14px 0;
+  border-bottom: 1px solid #e5d8ce;
+}
+
+.booking-date {
+  font-family: var(--font-heading);
+  font-size: 1.08rem;
+}
+
+.booking-activities {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px 12px;
+  color: var(--color-text);
+}
+
+.booking-activity {
+  font-weight: 600;
+}
+
+.booking-metadata {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 4px 14px;
+  color: var(--color-text-light);
+  font-size: 0.88rem;
+}
+
+.delete-booking-btn {
+  justify-self: start;
+  min-height: 36px;
+  padding: 6px 10px;
+  border: 1px solid #c84a62;
+  border-radius: 5px;
+  background: transparent;
+  color: #a83049;
+  font: inherit;
+  font-weight: 700;
+  cursor: pointer;
+}
+
+.delete-booking-btn:hover,
+.delete-booking-btn:focus-visible {
+  background: #fff0f2;
+}
+
+.delete-booking-btn:disabled {
+  opacity: 0.55;
+  cursor: wait;
+}
+
 .admin-calendar {
   margin-top: 20px;
   padding: 16px;

public/admin.html

@@ -35,6 +35,7 @@
 
       <nav class="admin-nav" aria-label="Verwaltung">
         <button class="admin-nav-btn is-active" type="button" data-view="datesView">Termine</button>
+        <button class="admin-nav-btn" type="button" data-view="bookingsView">Gebuchte Termine</button>
         <button class="admin-nav-btn" type="button" data-view="activitiesView">Aktivitäten</button>
       </nav>
 
@@ -73,6 +74,17 @@
       </section>
       </div>
 
+      <div id="bookingsView" class="admin-panel hidden">
+        <section class="admin-section" aria-labelledby="bookingsTitle">
+          <div class="section-heading">
+            <h2 id="bookingsTitle">Gebuchte Termine</h2>
+            <p>Neueste Buchungen stehen oben.</p>
+          </div>
+          <ul id="bookingsList" class="bookings-list" aria-live="polite"></ul>
+          <p id="emptyBookings" class="empty-dates hidden">Noch keine Termine gebucht.</p>
+        </section>
+      </div>
+
       <div id="activitiesView" class="admin-panel hidden">
         <section class="admin-section" aria-labelledby="activitiesTitle">
           <div class="section-heading">

public/admin.js

@@ -19,6 +19,8 @@
   const emptyActivities = document.getElementById("emptyActivities");
   const activityMessage = document.getElementById("activityMessage");
   const activityAddRow = document.getElementById("activityAddRow");
+  const bookingsList = document.getElementById("bookingsList");
+  const emptyBookings = document.getElementById("emptyBookings");
   const newActivityIcon = document.getElementById("newActivityIcon");
   const newActivityName = document.getElementById("newActivityName");
   const newActivityType = document.getElementById("newActivityType");
@@ -33,6 +35,7 @@
   let viewYear = today.getFullYear();
   let viewMonth = today.getMonth();
   let activities = [];
+  let bookings = [];
 
   function setMessage(element, message, success) {
     element.textContent = message;
@@ -149,6 +152,76 @@
     prevMonthBtn.disabled = viewYear === today.getFullYear() && viewMonth === today.getMonth();
   }
 
+  function renderBookings() {
+    bookingsList.innerHTML = "";
+    emptyBookings.classList.toggle("hidden", bookings.length > 0);
+    bookings.forEach((booking) => {
+      const row = document.createElement("li");
+      row.className = "booking-row";
+
+      const date = document.createElement("strong");
+      date.className = "booking-date";
+      date.textContent = formatDate(booking.date);
+      row.appendChild(date);
+
+      if (booking.activities && booking.activities.length > 0) {
+        const activityList = document.createElement("div");
+        activityList.className = "booking-activities";
+        booking.activities.forEach((activity) => {
+          const activityItem = document.createElement("span");
+          activityItem.className = "booking-activity";
+          activityItem.textContent = `${activity.icon || ""} ${activity.name}`.trim();
+          activityList.appendChild(activityItem);
+        });
+        row.appendChild(activityList);
+      }
+
+      const metadata = document.createElement("div");
+      metadata.className = "booking-metadata";
+      if (booking.name && booking.name.trim()) {
+        const name = document.createElement("span");
+        name.textContent = booking.name;
+        metadata.appendChild(name);
+      }
+      if (booking.bookedAt) {
+        const created = document.createElement("time");
+        created.dateTime = booking.bookedAt;
+        created.textContent = `Gebucht am ${new Date(booking.bookedAt).toLocaleString("de-DE", { dateStyle: "medium", timeStyle: "short" })}`;
+        metadata.appendChild(created);
+      }
+      if (metadata.childElementCount > 0) row.appendChild(metadata);
+
+      const deleteButton = document.createElement("button");
+      deleteButton.className = "delete-booking-btn";
+      deleteButton.type = "button";
+      deleteButton.textContent = "Termin löschen";
+      deleteButton.addEventListener("click", () => deleteBooking(booking, deleteButton));
+      row.appendChild(deleteButton);
+      bookingsList.appendChild(row);
+    });
+  }
+
+  async function deleteBooking(booking, deleteButton) {
+    if (!window.confirm(`Den gebuchten Termin am ${formatDate(booking.date)} wirklich löschen?`)) return;
+    deleteButton.disabled = true;
+    try {
+      await request("/api/admin/bookings", { method: "DELETE", body: JSON.stringify({ date: booking.date }) });
+      bookedDates.delete(booking.date);
+      await loadBookings();
+      renderCalendar();
+      renderDates();
+    } catch (error) {
+      deleteButton.disabled = false;
+      if (error.status === 401) showLogin("Deine Anmeldung ist abgelaufen.");
+      else window.alert(error.message);
+    }
+  }
+
+  async function loadBookings() {
+    bookings = await request("/api/admin/bookings", { method: "GET" });
+    renderBookings();
+  }
+
   async function loadDates() {
     try {
       const [loadedDates, loadedBookedDates] = await Promise.all([
@@ -161,7 +234,7 @@
       draftDates = new Map(dates.map((date) => [date.date, date.type]));
       loginView.classList.add("hidden");
       adminView.classList.remove("hidden");
-      await loadActivities();
+      await Promise.all([loadActivities(), loadBookings()]);
       renderCalendar();
       renderDates();
     } catch (error) {

public/checkout.html

@@ -41,7 +41,7 @@
           </div>
         </div>
 
-        <div class="summary-item">
+        <div id="summaryNameItem" class="summary-item">
           <span class="summary-icon">👤</span>
           <div class="summary-details">
             <span class="summary-label">Name</span>

public/checkout.js

@@ -7,6 +7,7 @@
   const summaryActivity = document.getElementById("summaryActivity");
   const summaryDate = document.getElementById("summaryDate");
   const summaryName = document.getElementById("summaryName");
+  const summaryNameItem = document.getElementById("summaryNameItem");
   const activityIcon = document.getElementById("activityIcon");
   const checkoutBtn = document.getElementById("checkoutBtn");
 
@@ -19,13 +20,17 @@
   const selectedDate = localStorage.getItem("selectedDate");
   const selectedName = localStorage.getItem("selectedName");
 
-  if (!selectedActivity || !selectedDate || !selectedName) {
+  if (!selectedActivity || !selectedDate) {
     window.location.href = "index.html";
     return;
   }
 
   summaryActivity.textContent = selectedActivity;
+  if (selectedName && selectedName.trim()) {
     summaryName.textContent = selectedName;
+  } else {
+    summaryNameItem.classList.add("hidden");
+  }
 
   const dateObj = new Date(`${selectedDate}T00:00:00`);
   const formattedDate = dateObj.toLocaleDateString("de-DE", {

public/name.js

@@ -30,15 +30,21 @@
 
   fetch("/api/settings", { cache: "no-store" })
     .then((response) => response.json())
-    .then((settings) => renderNames(settings.names || []))
+    .then((settings) => {
+      const names = settings.names || [];
+      if (names.length === 0) {
+        localStorage.setItem("selectedName", "");
+        window.location.href = "checkout.html";
+        return;
+      }
+      renderNames(names);
+    })
     .catch(() => {
       nameList.textContent = "Namen konnten nicht geladen werden.";
     });
 
   function renderNames(names) {
-    const options = names.length > 0 ? names : ["Du weißt, wer ich bin"];
+    names.forEach((name) => {
-
-    options.forEach((name) => {
       const card = document.createElement("button");
       card.type = "button";
       card.className = "name-card";

start.sh

@@ -1,11 +1,23 @@
 #!/bin/sh
 set -eu
 
-settings_file="${SETTINGS_FILE:-/app/appsettings.json}"
+config_dir="/app/config"
+settings_file="$config_dir/appsettings.json"
 
 if [ ! -f "$settings_file" ]; then
-  mkdir -p "$(dirname "$settings_file")"
+  echo "Missing mounted config file: $settings_file" >&2
-  cp /app/appsettings.default.json "$settings_file"
+  exit 1
 fi
 
+activities_file="$config_dir/activities.json"
+available_dates_file="$config_dir/dates_available.json"
+booked_dates_file="$config_dir/dates_booked.json"
+
+for config_file in "$activities_file" "$available_dates_file" "$booked_dates_file"; do
+  if [ ! -f "$config_file" ]; then
+    echo "Missing mounted config file: $config_file" >&2
+    exit 1
+  fi
+done
+
 exec /app/server