chore: consolidate gitignore paths to app/data and app/reports

.gitignore

@@ -9,12 +9,8 @@ skills-lock.json
 # python cache
 __pycache__/
 
-# incremental-scan state (regenerated each run)
-data/scan_state.json
+# app runtime data (feeds, caches, scan state - regenerated each run)
+app/data/
 
-# reports data
-reports/copyparty/
-reports/mikrotik/
-reports/npm/
-# timestamped app blocklist change reports (reports/app/data/ stays tracked)
-reports/app/*.json
+# generated reports
+app/reports/