docs(12-01): update state and roadmap progress after plan 12-01

.planning/STATE.md

@@ -4,16 +4,16 @@ milestone: v1.0
 current_phase: 12
 current_phase_name: Płytarium API — Collections and Albums
 status: executing
-stopped_at: Completed 11.2-03-PLAN.md
-last_updated: "2026-10-02T06:40:05.378Z"
-last_activity: 2026-10-01
-last_activity_desc: Phase 09 re-verified and marked complete (review fixes applied)
-state_head: d97b4292a3473b1b83e45ac15425a27320db43ff
+stopped_at: Completed 12-01-PLAN.md
+last_updated: "2026-10-02T09:50:35.349Z"
+last_activity: 2026-10-02
+last_activity_desc: Phase 12 execution started
+state_head: ce72e60491ae639ea7c4d3ec1e8773635167b2d0
 progress:
-  total_phases: 19
+  total_phases: 20
   completed_phases: 10
   total_plans: 101
-  completed_plans: 96
+  completed_plans: 97
 milestone_name: milestone
 ---
 
@@ -24,14 +24,14 @@ milestone_name: milestone
 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 11.2 — summercms.io Alpha 0.1 landing page on SummerCMS (INSERTED)
+**Current focus:** Phase 12 — Płytarium API — Collections and Albums
 
 ## Current Position
 
-Phase: 12 (Płytarium API — Collections and Albums) — READY TO EXECUTE
-Plan: 3 of 3
+Phase: 12 (Płytarium API — Collections and Albums) — EXECUTING
+Plan: 2 of 5
 Status: Ready to execute
-Last activity: 2026-10-02 - Completed quick task 261002-esz: Extract golem15.user into its own repo sm-user-plugin
+Last activity: 2026-10-02 — Phase 12 execution started
 
 Progress: [██████░░░░] 60%
 
@@ -151,6 +151,7 @@ Progress: [██████░░░░] 60%
 | Phase 11.2 P01 | 12 min | 3 tasks | 35 files |
 | Phase 11.2 P02 | 22min | 5 tasks | 36 files |
 | Phase 11.2 P03 | 13 min | 3 tasks | 11 files |
+| Phase 12 P01 | 39 min | 4 tasks | 57 files |
 
 ## Accumulated Context
 
@@ -164,6 +165,7 @@ Progress: [██████░░░░] 60%
 - Phase 11.2 edited: edited fields: title, goal, repos, design source, success_criteria — reshaped into the Alpha 0.1 landing page (Nuxt 4 on SummerCMS, nginx + supervisor deploy); newsletter moved to 11.3
 - Phase 11.3 inserted after Phase 11.2: Newsletter plugin and signup on summercms.io (split out of the original 11.2)
 - Phase 11.3 deferred to the backlog as Phase 999.1 (2026-10-02): the Journal plugin and delivering Płytarium take priority
+- Phase 12.1 inserted after Phase 12: User plugin admin screens (sm-user-plugin): Users, User Groups, Organisations admin, before Phase 15 cutover
 
 ### Decisions
 
@@ -427,6 +429,11 @@ Recent decisions affecting current work:
 - [Phase 11.2]: 11.2-02: the terminal check's clone override clones into the page's directory (git clone <override> summercms) so the page's cd summercms works with a local path
 - [Phase 11.2]: 11.2-03: the gate's --built stage builds in release mode only when the framework checkout build.sh uses has v0.1.0, else a dev build
 - [Phase 11.2]: 11.2-03: plugin route coexistence is tested with the plugin's real patterns from surf.BuildRouter(...).Routes() beside cabana's admin patterns on one ServeMux
+- [Phase 12]: 12-01: lagoon.ValidateRequest follows Laravel exactly, including that a wildcard rule with nothing to expand adds no attribute; Go expectations are cross-checked against the real Winter validator from the PHP vendor tree
+- [Phase 12]: 12-01: lagoon.ErrorKeys(errs, rules) rebuilds the PHP message-bag key order from the rule table, since a Go map carries none
+- [Phase 12]: 12-01: exists:table,column compares CAST(column AS TEXT) with the PHP string form of the value, so bad input is a 422, never a Postgres error
+- [Phase 12]: 12-01: beachcomber.PageSearcher is optional and SearchPage falls back to SearchIDs, so Engine and existing fakes stay unchanged; Typesense pages are capped at 250
+- [Phase 12]: 12-01: sm-user-plugin user groups are additive (migration 202610020001_create_user_groups, User.Groups never serialized); commits are local because the orchestrator forbade pushing
 
 ### Pending Todos
 
@@ -475,6 +482,6 @@ Items acknowledged and carried forward from previous milestone close:
 
 ## Session Continuity
 
-Last session: 2026-10-01T14:40:46.600Z
-Stopped at: Completed 11.2-03-PLAN.md
+Last session: 2026-10-02T09:50:21.962Z
+Stopped at: Completed 12-01-PLAN.md
 Resume file: None