docs(phase-7): complete phase execution

Avatar bucket publish closed the last UAT blocker. Phase 7 is 8/8
verified. Next is discuss Phase 8; do not auto-advance.

Co-authored-by: Cursor <cursoragent@cursor.com>

.planning/STATE.md

@@ -2,9 +2,9 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: verifying
-stopped_at: Completed 07-08-PLAN.md
-last_updated: "2026-09-23T08:51:11.470Z"
+status: ready_to_plan
+stopped_at: Phase 7 complete (8/8) — ready to discuss Phase 08
+last_updated: 2026-09-23T08:53:13.477Z
 last_activity: 2026-09-23 -- Completed 07-08-PLAN.md
 progress:
   total_phases: 15
@@ -21,14 +21,14 @@ progress:
 See: .planning/PROJECT.md (updated 2026-09-16)
 
 **Core value:** An existing WinterCMS-shaped app can be ported plugin by plugin to a single Go binary without its frontend noticing: the PHP version's API contract is the acceptance test.
-**Current focus:** Phase 07 — user-plugin-and-authentication
+**Current focus:** Phase 08 — oauth2 1 authorization server
 
 ## Current Position
 
-Phase: 07 (user-plugin-and-authentication) — EXECUTING
-Plan: 8 of 8
-Status: All 8 plans have SUMMARYs. Ready for phase verification — do not auto-advance.
-Last activity: 2026-09-23 -- Completed 07-08-PLAN.md
+Phase: 08
+Plan: Not started
+Status: Ready to plan
+Last activity: 2026-09-23
 
 Progress: [██████████] 100%
 
@@ -36,7 +36,7 @@ Progress: [██████████] 100%
 
 **Velocity:**
 
-- Total plans completed: 48
+- Total plans completed: 56
 - Average duration: 21 min
 - Total execution time: 104 min
 
@@ -50,6 +50,7 @@ Progress: [██████████] 100%
 | 04 | 4 | - | - |
 | 05 | 6 | - | - |
 | 06 | 14 | - | - |
+| 7 | 8 | - | - |
 
 **Recent Trend:**