docs(11-04): complete client name navigation plan

- Add 11-04-SUMMARY.md with task results, decision log, self-check passed
- Add deferred-items.md logging pre-existing port_autofill E2E failure
- STATE.md: advance plan, record decisions, update session
- ROADMAP.md: Phase 11 marked 4/4 Complete

.planning/STATE.md

@@ -3,7 +3,23 @@ gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Hardening & Validation
 current_plan: 3
-status: completed
+status: verifying
+stopped_at: Completed 11-ui-enhancements/11-04-PLAN.md
+last_updated: "2026-04-15T12:54:00.372Z"
+last_activity: 2026-04-15
+progress:
+  total_phases: 4
+  completed_phases: 4
+  total_plans: 18
+  completed_plans: 18
+---
+
+---
+gsd_state_version: 1.0
+milestone: v1.1
+milestone_name: Hardening & Validation
+current_plan: 3
+status: Phase complete — ready for verification
 stopped_at: Completed 11-ui-enhancements/11-01-PLAN.md
 last_updated: "2026-04-15T09:04:38.757Z"
 last_activity: 2026-04-15
@@ -89,6 +105,8 @@ Full decision log in PROJECT.md Key Decisions table. Milestone v1.0 decisions ar
 - [Phase 09-ux-tech-debt-closure]: 09-02: conftest.py adapted — imptune.config uses string paths, init_db() takes no args
 - [Phase 11-ui-enhancements]: 11-01: Plain HTML form in printers_new.html (Option A) — no hx-post, uses action=/printers method=post so browser follows 303 redirect naturally
 - [Phase 11-ui-enhancements]: 11-01: driver_data context kept in GET /printers handler for future Plan 02 edit modal
+- [Phase 11-ui-enhancements]: 11-04: client_id extracted from printers[0].client_id in Jinja2 — no grouped structure change needed
+- [Phase 11-ui-enhancements]: 11-04: Unassigned group header plain text — group_client_id is None when client_id absent; no dead anchor
 
 ### Active Blockers
 
@@ -102,6 +120,6 @@ None. BLOCKER-01 resolved 2026-04-13 via commits 74535ea (HMAC over IV+ciphertex
 
 ## Session Continuity
 
-Last session: 2026-04-15T09:04:38.754Z
-Stopped at: Completed 11-ui-enhancements/11-01-PLAN.md
+Last session: 2026-04-15T12:54:00.369Z
+Stopped at: Completed 11-ui-enhancements/11-04-PLAN.md
 Resume file: None