docs: reconcile documentation with reality (P3)

Make the project's documentation match the code and remove the sprawl. The docs
claimed Phase 2.8 (drug interactions) was 'planning/0%' and the backend '~91%
complete' — both wrong: 2.8 is implemented and live, plus the P0/P1 security
and test work is done. Five root CI/CD docs described a 'docker-build' CI job
that was removed; ~18 backend/ status snapshots and ~24 docs/implementation
duplicates cluttered the tree.

Deletions (85 files):
- Root: 4 stale CI/CD reports (CI-CD-{COMPLETION-REPORT,IMPLEMENTATION-SUMMARY,
  STATUS-REPORT,FINAL-STATUS}.md) — all describe the removed docker-build job.
- backend/: 18 phase/build/fix snapshots and code-dump .txt files.
- docs/: the 3 one-time reorg reports; ~17 docs/implementation duplicates and
  process artifacts; 4 stale docs/development CI docs + git snapshots;
  redundant deployment/testing files.
- thoughts/: STATUS.md (said Phase 2.4 in-progress), superseded phase notes and
  duplicative research inputs. tmp/ (928KB of CI debug logs, gitignored).

Moves (18 files):
- 9 genuine decision records -> docs/adr/ (Architecture Decision Records),
  date-prefixes stripped, with an index README.
- 8 historical-but-valuable phase plans/specs + the old CI-CD-FINAL-SOLUTION ->
  docs/archive/ (now-populated, with a README explaining it's superseded
  material). thoughts/ tree removed.

Rewrites (13 files) to match reality:
- Drop the fake '% complete' figures everywhere in favor of Implemented /
  In-Progress / Planned with concrete endpoint/feature lists.
- Phase 2.8 -> Implemented; add /api/interactions/* and /api/auth/{refresh,
  logout} to the endpoint lists; fix 'Rust 1.93' -> edition 2021.
- Add a Security section (token_version validation, hashed refresh-token
  persistence, fail-fast config, real-IP audit) and correct the test-coverage
  and deployment claims to reality.
- New canonical docs/development/CI-CD.md (4 jobs: format/clippy/build/test,
  mongo service, no docker-build + why).
- README, docs/README, product/{STATUS,ROADMAP,PROGRESS,README,introduction},
  implementation/README, development/README, testing/README, AI_AGENT_GUIDE,
  .cursorrules, .gooserules all updated.

Verified: greps for 'Phase 2.8 (Planning)', 'PLANNING (0%)', 'Rust 1.93',
'91%/10%/85% complete', and 'docker-build' return nothing outside docs/archive;
all internal doc links resolve; backend/src untouched (cargo build clean).

docs/product/introduction.md

@@ -91,7 +91,7 @@ Normogen's revenue will come from **user subscriptions**, not from using or sell
 ### Technology Stack
 
 #### Backend
-- **Language**: Rust 1.93 (performance, safety)
+- **Language**: Rust (edition 2021; performance, safety)
 - **Framework**: Axum 0.7 (async web framework)
 - **Database**: MongoDB 7.0 (flexible document storage)
 - **Security**: JWT authentication, PBKDF2 password hashing, AES-256-GCM encryption
@@ -190,10 +190,9 @@ Most sensors will have a common interface or data will be accessible through the
 
 ## Current Status
 
-**Phase**: 2.8 - Drug Interactions & Advanced Features (Planning)  
-**Backend**: 91% complete  
-**Frontend**: 10% complete  
-**Deployment**: Production-ready (Docker on Solaria)
+**Backend**: ✅ Phase 2.x feature-complete (through drug interactions); security-hardened.
+**Frontend**: 🚧 Early (Login/Register + API/store layer; router not yet wired).
+**Deployment**: Docker on Solaria (image built manually — not in CI).
 
 See [STATUS.md](./STATUS.md) for detailed progress tracking.
 
@@ -201,11 +200,11 @@ See [STATUS.md](./STATUS.md) for detailed progress tracking.
 
 ## Roadmap Highlights
 
-### Phase 2.8 (Current - Planning)
-- Drug interaction checking
-- Automated reminder system
-- Advanced health analytics
-- Healthcare data export (FHIR, HL7)
+### Phase 2.8 (core implemented)
+- ✅ Drug interaction checking (`/api/interactions/check`, `/check-new`)
+- 🔔 Automated reminder system (not started)
+- 📊 Advanced health analytics (not started)
+- 📄 Healthcare data export, FHIR/HL7 (not started)
 
 ### Phase 3 (Planned - Q2 2026)
 - Complete frontend web application
@@ -274,4 +273,4 @@ We welcome contributions from developers, designers, and users. See [development
 
 **Last Updated**: 2026-03-09  
 **Maintained By**: Project maintainers  
-**Version**: 0.2.8 (Phase 2.8 Planning)
+**Version**: 0.2.8 (Phase 2.8 implemented)