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/restore-secrets.sh

@@ -132,13 +132,13 @@ for encrypted_file in "${ENCRYPTED_FILES[@]}"; do
 
     # Determine target path based on filename
     if [[ "$filename" == "backend-.env" ]]; then
-        target="reports-app/backend/.env"
+        target="backend/.env"
     elif [[ "$filename" == "backend-.env.prod" ]]; then
-        target="reports-app/backend/.env.prod"
+        target="backend/.env.prod"
     elif [[ "$filename" == "telegram-bot-.env" ]]; then
-        target="reports-app/telegram-bot/.env"
+        target="backend/modules/telegram/.env"
     elif [[ "$filename" == "telegram-bot-.env.prod" ]]; then
-        target="reports-app/telegram-bot/.env.prod"
+        target="backend/modules/telegram/.env.prod"
     else
         echo -e "${YELLOW}Skipping unknown file: $filename${NC}"
         continue