Add StoreLogTools and endpoint for retrieving store log entries; update README

.github/prompts/get-aldi-breakers.prompt.md

@@ -0,0 +1,19 @@
+---
+agent: 'agent'
+model: Grok Code Fast 1 (copilot)
+tools: ['foodsharing-mcp/*']
+description: 'Get duplicate ALDI memberships in the siegen region'
+---
+
+Region ID: 139 (Siegen)
+Search for all stores in that region that name contains "ALDI"
+For all found stores, use the "storeId" to get the store members that are assigned to that store and have a membership status of "active"
+
+Collect all the members in one big list, group them by name.
+The goal is to see which members is in how many of those stores.
+It is only of interest if a member is in more than two stores, so only show those members that are in three or more stores.
+
+return a list of members with the following information:
+- Name
+- Number of stores they are assigned to
+- List of store names they are assigned to