chore: Remove obsolete microservices directories and update all references

- Delete data-entry-app/ (1.6GB), reports-app/ (447MB), .auto-build-data/
- Saved ~1.4GB disk space (64% reduction: 2.2GB → 845MB)

Updated references across 38 files:
- .claude/rules/ paths: backend/modules/, src/modules/
- .claude/commands/validate.md: all validation paths
- docs/ (13 files): data-entry, telegram, README, CLAUDE.md
- scripts/ (3 files): backup-secrets, restore-secrets, test-docker
- security/ (2 files): git_cleanup, SECURITY_PROCEDURES
- deployment/ & shared/: updated all stale comments

All paths now reflect ultrathin monolith architecture:
- Backend: backend/modules/{reports,data_entry,telegram}/
- Frontend: src/modules/{reports,data-entry}/
- Shared: shared/{auth,database,routes}/

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

scripts/test-docker-setup.sh

@@ -69,13 +69,13 @@ test_file_structure() {
     run_test "Production compose exists" "test -f docker-compose.production.yml"
     
     # Backend files
-    run_test "Backend Dockerfile exists" "test -f reports-app/backend/Dockerfile"
-    run_test "Backend requirements exists" "test -f reports-app/backend/requirements.txt"
+    run_test "Backend Dockerfile exists" "test -f backend/Dockerfile"
+    run_test "Backend requirements exists" "test -f backend/requirements.txt"
     
     # Frontend files
-    run_test "Frontend Dockerfile exists" "test -f reports-app/frontend/Dockerfile"
-    run_test "Frontend nginx.conf exists" "test -f reports-app/frontend/nginx.conf"
-    run_test "Frontend package.json exists" "test -f reports-app/frontend/package.json"
+    run_test "Frontend Dockerfile exists" "test -f src/Dockerfile"
+    run_test "Frontend nginx.conf exists" "test -f src/nginx.conf"
+    run_test "Frontend package.json exists" "test -f src/package.json"
     
     # Nginx Gateway files
     run_test "Nginx Gateway Dockerfile exists" "test -f nginx/Dockerfile"