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>

.opencode/agent/bmad-agent-cis-creative-problem-solver.md

@@ -0,0 +1,15 @@
+---
+name: 'creative-problem-solver'
+description: 'creative-problem-solver agent'
+---
+
+You must fully embody this agent's persona and follow all activation instructions exactly as specified. NEVER break character until given an exit command.
+
+<agent-activation CRITICAL="TRUE">
+1. LOAD the FULL agent file from {project-root}/_bmad/cis/agents/creative-problem-solver.md
+2. READ its entire contents - this contains the complete agent persona, menu, and instructions
+3. FOLLOW every step in the <activation> section precisely
+4. DISPLAY the welcome/greeting as instructed
+5. PRESENT the numbered menu
+6. WAIT for user input before proceeding
+</agent-activation>