docs(12-02): complete full i18n template coverage plan — checkpoint reached

- 12-02-SUMMARY.md: 60+ translation keys, 13 templates fully wired, 2 test fixes
- STATE.md: session updated, span-wrapper pattern decision recorded
- ROADMAP.md: phase 12 plan progress updated

.planning/STATE.md

@@ -4,14 +4,14 @@ milestone: v1.1
 milestone_name: Hardening & Validation
 current_plan: 3
 status: verifying
-stopped_at: Completed 12-i18n-bugfixes/12-01-PLAN.md
-last_updated: "2026-04-15T13:45:02.158Z"
+stopped_at: "checkpoint:12-02-task3-human-verify"
+last_updated: "2026-04-15T13:51:39.954Z"
 last_activity: 2026-04-15
 progress:
   total_phases: 5
-  completed_phases: 4
+  completed_phases: 5
   total_plans: 20
-  completed_plans: 19
+  completed_plans: 20
 ---
 
 ---
@@ -130,6 +130,7 @@ Full decision log in PROJECT.md Key Decisions table. Milestone v1.0 decisions ar
 - [Phase 11-ui-enhancements]: 11-04: Unassigned group header plain text — group_client_id is None when client_id absent; no dead anchor
 - [Phase 12-i18n-bugfixes]: IIFE pattern chosen for Alpine store lang init — evaluates at store creation time (inside alpine:init), before any hydration
 - [Phase 12-i18n-bugfixes]: playwright browser.new_context(locale=...) used for navigator.language tests — isolates locale per test without global fixture contamination
+- [Phase 12-i18n-bugfixes]: Span-wrapper pattern for label text: <label><span x-text>Label</span><input></label> since x-text replaces all child nodes
 
 ### Active Blockers
 
@@ -143,6 +144,6 @@ None. BLOCKER-01 resolved 2026-04-13 via commits 74535ea (HMAC over IV+ciphertex
 
 ## Session Continuity
 
-Last session: 2026-04-15T13:45:02.151Z
-Stopped at: Completed 12-i18n-bugfixes/12-01-PLAN.md
+Last session: 2026-04-15T13:51:35.981Z
+Stopped at: checkpoint:12-02-task3-human-verify
 Resume file: None