feat: backlog P0→P3 — toast system, payments, tenant isolation, feedback handler, i18n parity

deploy: force redeploy with port fix validation

fix: update production port to 7860 for Hugging Face compatibility and add audit report

feat: implement whatsapp templates management with security hardening, audit logs, and crm integration

chore: stabilization, audit fixes and project synchronization

docs: add final audit report for fastify v4

docs: finalize audit report and apply immediate fixes (#1, #10, #16)

feat: implement bulk whatsapp campaigns with BullMQ and modular activation refactor (isCrmActive/isEdTechActive)

feat: centralize AI logic in @repo /ai-sdk, harmonize worker HTTP clients

chore: finalize Sprint P2 & P3 optimizations, baseline prisma migrations, and update technical audit docs

docs: update architecture with deployment cycle (trigger railway redeploy)

feat: implement WhatsApp setup route and documentation for Embedded Signup

docs: add technical documentation for WhatsApp B2B architecture (force add)

docs: finalize technical debt audit (force add ignored doc)

feat: Premium Onboarding with Meta SDK and Technical Debt resolution

chore: major tech debt cleanup v2.1 - Type Safety & Observability

Refactor: Technical Debt Repayment (Clean Dashboard, Strict Typing, Pino Logging, SQL Migration)

docs: Add detailed audio pipeline investigation report

docs: add audit_production.md + plan_implementation_prod.md; fix admin phone field

chore: ignore and remove docs folder

feat(module1): integrate the 12-day curriculum in FR/WO with seed data and auto-routing

docs: add technical audit of the new pedagogical architecture

feat(whatsapp): implement interactive pedagogy architecture with Voice and Button routing

chore: setup whatsapp-worker for pure JS compilation and add Dockerfile fallback for Railway