docs(09): create phase plan

.planning/STATE.md

@@ -1,17 +1,20 @@
 ---
-gsd_state_version: 1.0
+gsd_state_version: "1.0"
 milestone: v1.0
-milestone_name: milestone
-status: ready_to_plan
+current_phase: 09
+current_phase_name: backend-admin-authentication-and-schema-pipeline
+status: executing
 stopped_at: Phase 08 complete (10/10) — ready to discuss Phase 09
-last_updated: 2026-09-23T23:13:48.826Z
-last_activity: 2026-09-23
+last_updated: "2026-09-24T14:43:54.863Z"
+last_activity: 2026-09-24
+last_activity_desc: Phase 09 planning complete
+state_head: 1fbf492450fe6d8b0cf4fa0cd6f742d40e117ce5
 progress:
   total_phases: 15
   completed_phases: 8
-  total_plans: 55
+  total_plans: 67
   completed_plans: 55
-  percent: 53
+milestone_name: milestone
 ---
 
 # Project State
@@ -25,10 +28,10 @@ See: .planning/PROJECT.md (updated 2026-09-16)
 
 ## Current Position
 
-Phase: 09
+Phase: 09 (backend-admin-authentication-and-schema-pipeline) — READY TO EXECUTE
 Plan: Not started
-Status: Ready to plan
-Last activity: 2026-09-23
+Status: Ready to execute
+Last activity: 2026-09-24 — Phase 09 planning complete
 
 Progress: [██████████] 100%