Both phases complete. Summary:

Phase 1 — MIB v1.1 Minor Finalization ✅
Three editorial changes applied to 

MASTER_IMPLEMENTATION_BACKLOG_v1.1.md
:

Change	Location
"AI Sessions" → "Estimated AI Coding Sessions"	All 12 occurrences (INIT-001 through INIT-011)
Added: Dependency order always takes precedence over numeric task identifiers.	Below execution diagram
Added Sprint Gate block	After Epic 0 Completion Checklist
No architecture, scope, files, or acceptance criteria changed.

Phase 2 — DBP v1.1 Synchronization ✅


DBP_v1.1.md
 produced — all 13 original chapters preserved, 9 updated.

Chapter	Revisions Applied
4. Configuration	REV-018 — SESSION_INACTIVITY_TIMEOUT
5. Front Controller	REV-010, REV-019 — execution order + root resolution
6. Error Handling	REV-015 — Logger is production-complete after INIT-006
9. View System	REV-015, REV-016, REV-017 — escape_html(), portal layouts, no generic app layout
10. Helper Infrastructure	REV-016, REV-019 — helper table + __FILE__ pattern
12. Database Layer	REV-011, REV-020 — count() primitive + INIT-012 validation-only
13. Middleware	REV-013 — Sprint 0 = MiddlewarePipeline.php only
15. Appendix (new)	REV-022 — CLI validation test scaffold
Proposed commit message (do NOT execute — awaiting your instruction):

docs: finalize MIB v1.1 editorial + produce DBP v1.1 synchronized with DRP v2.0
1:33 AM
1:50 AM


SPRINT0_ARCHITECTURE_REVIEW.md
 is written.

Architecture Scorecard Summary
Dimension	Score
Layered Architecture	✅ Excellent — no violations, strict top-down dependency
Kernel (15 files)	✅ Excellent — production-ready, no functional gaps
Security	✅ Strong — escaping, CSRF infra, session flags, Apache hardening
Maintainability	✅ Excellent — consistent naming, focused files, no cross-contamination
Documentation	✅ Outstanding — inline docblocks cross-referenced to architecture docs
Technical Debt	⚠️ Low — 4 items, 1 medium (CSP), 3 low
Technical Debt Register
ID	Item	Severity	Blocks Sprint 1?
TD-001	No MiddlewareInterface — contract is by convention only	Low	No
TD-002	Content-Security-Policy header absent	Medium	No
TD-003	Log file rotation not implemented	Low	No
TD-004	TailwindCSS via CDN (approved Sprint 0 decision)	Low	No
Final Verdict
Sprint 0 is architecturally complete and correct. Sprint 1 is authorized to begin.

The framework is frozen. All Sprint 1 work (Auth, CsrfMiddleware, AuthMiddleware, RoleMiddleware, session timeout enforcement) extends the framework via modules and middleware — no kernel modifications required.

1:47 AM
1:56 AM
Both phases complete. Here is the concise planning summary as requested.

Planning Summary
Sprint Objective: Deliver the Core Utilities layer — MiddlewareInterface, CsrfMiddleware, compiled asset pipeline, and CDN elimination. No business features. No kernel modifications except one additive guard in MiddlewarePipeline.

Planned Task Count: 4 tasks (CORE-001 → CORE-002 → CORE-003 → CORE-004)

Dependencies:

Sprint 0 frozen and complete ✅
Csrf::validate(), Session::get(), ErrorHandler::renderForbidden(), and MiddlewarePipeline all available from Sprint 0
No new kernel infrastructure required
Risks:

ID	Risk	Severity
R-S1-01	CSRF blanket enforcement may conflict with future exempt POST endpoints (webhooks)	Medium
R-S1-02	Tailwind CLI requires Node.js — may not be available on bare XAMPP	Low
R-S1-03	MiddlewarePipeline modification is the only permitted kernel touch — must be additive only	Low
R-S1-04	MIB Epic 1 is in .docx — this planning document is the operative Sprint 1 reference	Low
Exit Criteria: All 4 tasks complete and verified · TD-001 resolved · TD-004 resolved · no new undocumented technical debt · implementation memories written · user approval granted · Sprint 2 authorized.