fix: scope all git, activity, webhook, and summarize-title routes to correct project store

- Fix 30 git routes to use getScopedStore(req) instead of global store
- Fix activity GET/DELETE routes to use scoped store
- Fix POST /api/github/webhooks to use scoped store for badge updates
- Fix POST /api/ai/summarize-title to use scoped store for settings
- Fix GET /api/git/worktrees to use scoped store for task listing
- Add projectId parameter to all git and activity frontend API functions
- Update useActivityLog hook to pass projectId through

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

packages/dashboard/app/hooks/useActivityLog.ts

@@ -84,7 +84,7 @@ export function useActivityLog(options: UseActivityLogOptions = {}): UseActivity
         // Per-project: fetchActivityLog returns ActivityLogEntry[] which is a
         // subset of ActivityFeedEntry (missing projectId/projectName). Map to
         // the full shape so downstream consumers see a uniform interface.
-        const logEntries = await fetchActivityLog({ limit, type });
+        const logEntries = await fetchActivityLog({ limit, type, projectId });
         data = logEntries.map((entry) => ({
           ...entry,
           projectId: projectId ?? "",
@@ -125,6 +125,7 @@ export function useActivityLog(options: UseActivityLogOptions = {}): UseActivity
           limit,
           type,
           since: lastTimestampRef.current,
+          projectId,
         });
         data = logEntries.map((entry) => ({
           ...entry,