docs(04-01): complete job deactivation form plan

Create SUMMARY.md documenting completed plan 04-01: job deactivation form with required reason field, ownership validation, and dashboard integration. Update STATE.md to reflect Phase 4 Plan 1 completion (12 plans total, 48% progress). Update ROADMAP.md to mark 04-01 as complete.

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

.planning/STATE.md

@@ -5,23 +5,23 @@
 See: .planning/PROJECT.md (updated 2026-01-14)
 
 **Core value:** Every job goes through admin approval before mentors see it. The moderation flow is the trust layer that protects mentors from spam or inappropriate content.
-**Current focus:** Phase 2 — Provider Registration & Auth (Complete)
+**Current focus:** Phase 4 — Job Deactivation System (In Progress)
 
 ## Current Position
 
-Phase: 3 of 7 (Job Management Core)
-Plan: 4 of 4 in current phase
-Status: Phase complete
-Last activity: 2026-01-14 — Completed Phase 3 (all 4 plans executed in parallel)
+Phase: 4 of 7 (Job Deactivation System)
+Plan: 1 of 2 in current phase
+Status: Plan 04-01 complete
+Last activity: 2026-01-14 — Completed Plan 04-01 (job deactivation form)
 
-Progress: ███████████ 44%
+Progress: ███████████░ 48%
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 11
-- Average duration: 8.6 min
-- Total execution time: 1.6 hours
+- Total plans completed: 12
+- Average duration: 8.5 min
+- Total execution time: 1.7 hours
 
 **By Phase:**
 
@@ -30,9 +30,10 @@ Progress: ███████████ 44%
 | 1 | 3 | 6 min | 2 min |
 | 2 | 4 | 42 min | 10.5 min |
 | 3 | 4 | 50 min | 12.5 min |
+| 4 | 1 | 8 min | 8 min |
 
 **Recent Trend:**
-- Last 5 plans: 02-04 (9 min), 03-01 (15 min), 03-02 (12 min), 03-03 (8 min), 03-04 (15 min), parallelized
+- Last 5 plans: 03-01 (15 min), 03-02 (12 min), 03-03 (8 min), 03-04 (15 min), 04-01 (8 min)
 - Trend: Stable (parallelization used for Phases 2 and 3)
 
 ## Accumulated Context
@@ -71,6 +72,11 @@ Recent decisions affecting current work:
 | 03-04 | Removed default 'author' and 'date' columns in favor of custom columns | Cleaner admin interface with relevant moderation info |
 | 03-04 | Admin hooks only loaded when is_admin() is true | Frontend performance optimization |
 | 03-04 | Made columns sortable including ACF fields | Enables efficient workflow sorting by date, location, or type |
+| 04-01 | Deactivation form validates ownership via frm_validate_entry hook | Prevents URL parameter tampering attacks on deactivation |
+| 04-01 | Deactivation updates post_status to 'draft' | Removes from public view while preserving for potential reactivation |
+| 04-01 | Required reason field for deactivation | Captures business intelligence about why jobs are removed |
+| 04-01 | Deactivate button only for published jobs | Reduces UI clutter and prevents confusion with pending/draft jobs |
+| 04-01 | Destructive button styling (red) for deactivate | UX best practice signals significant action to prevent accidental clicks |
 
 ### Deferred Issues
 
@@ -82,6 +88,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-01-14T10:50:00Z
-Stopped at: Completed Phase 3 (all 4 plans executed in parallel)
+Last session: 2026-01-14T[current time]
+Stopped at: Completed Plan 04-01 (job deactivation form)
 Resume file: None