docs(02-06): complete common auth runtime plan

- add 02-06 execution summary and self-check
- update GSD state progress for completed plan

.planning/STATE.md

@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-current_plan: 3
+current_plan: 7
 status: executing
-last_updated: "2026-04-28T11:51:48.893Z"
+last_updated: "2026-04-28T14:57:40.504Z"
 progress:
   total_phases: 11
   completed_phases: 1
   total_plans: 14
-  completed_plans: 10
-  percent: 71
+  completed_plans: 13
+  percent: 93
 ---
 
 # Project State: Recipe
@@ -26,12 +26,12 @@ progress:
 ## Current Position
 
 Phase: 02 (authentication-foundation) — EXECUTING
-Plan: 3 of 7
+Plan: 7 of 7
 **Current focus:** Phase 02 — authentication-foundation
-**Current plan:** 3
+**Current plan:** 7
 **Status:** Ready to execute
-**Phase progress:** 3 / 7 plans complete
-**Progress bar:** `[███████░░░] 71%`
+**Phase progress:** 6 / 7 plans complete
+**Progress bar:** `[█████████░] 93%`
 
 ## Performance Metrics
 
@@ -41,9 +41,10 @@ Plan: 3 of 7
 | v1 requirements | 72 |
 | Coverage | 100% |
 | Phases complete | 1 |
-| Plans complete | 10 |
+| Plans complete | 13 |
 | Phase 02 P02 | 13min | 3 tasks | 14 files |
 | Phase 02-authentication-foundation P03 | 31m | 2 tasks | 8 files |
+| Phase 02-authentication-foundation P06 | 34m | 3 tasks | 7 files |
 
 ## Accumulated Context
 
@@ -61,9 +62,9 @@ All locked tech-stack decisions are captured in `.planning/PROJECT.md § Key Dec
 
 ## Session Continuity
 
-**Last session:** 2026-04-28T11:51:48.893Z
+**Last session:** 2026-04-28T14:57:40.504Z
 
-**Next action:** `/gsd-execute-phase 2` — Authentication Foundation.
+**Next action:** `/gsd-execute-phase 2` — Authentication Foundation plan 07.
 
 **Research flags to revisit during future phase planning:**