feat: production deployment - full update with providers, admin, glossaries, pricing, tests

Major changes across backend, frontend, infrastructure:
- Provider system with model selection (Google, DeepL, OpenAI, Ollama, Google Cloud)
- Admin panel: user management, pricing, settings
- Glossary system with CSV import/export
- Subscription and tier quota management
- Security hardening (rate limiting, API key auth, path traversal fixes)
- Docker compose for dev, prod, and IONOS deployment
- Alembic migrations for new tables
- Frontend: dashboard, pricing page, landing page, i18n (en/fr)
- Test suite and verification scripts

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

_bmad/cis/config.yaml

@@ -0,0 +1,12 @@
+# CIS Module Configuration
+# Generated by BMAD installer
+# Version: 6.0.1
+# Date: 2026-02-21T19:48:08.354Z
+
+visual_tools: intermediate
+
+# Core Configuration Values
+user_name: Sepehr
+communication_language: French
+document_output_language: French
+output_folder: "{project-root}/_bmad-output"