docs: update STATE.md with post-milestone work and update plugin author

- Document UI/UX modernization, email rewrite, and dev tooling in STATE.md
- Add post-milestone decisions table entries
- Update session continuity to 2026-02-13
- Update plugin author

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.planning/STATE.md

@@ -5,21 +5,43 @@
 See: .planning/PROJECT.md (updated 2026-01-16)
 
 **Core value:** Email format identical to legacy — office staff workflow depends on the exact HTML table structure.
-**Current focus:** Post-v1.0 bug fixes (manual testing discoveries)
+**Current focus:** Post-v1.0 polish — UI modernization, email format corrections, developer tooling
 
 ## Current Position
 
-Phase: 10 of 10 (Post-Release Fixes)
-Plan: 1 of 1 complete
-Status: Phase complete ✓
-Last activity: 2026-02-07 — Fixed form submit 404, handler timing, CPT meta box
+Phase: 10 of 10 (all roadmap phases complete)
+Status: Milestone v1.0 COMPLETE + post-milestone enhancements
+Last activity: 2026-02-13 — Test email admin page, comprehensive form fill button
 
 Progress: ██████████ 100% (11/11 plans)
 
+## Post-Milestone Work (after v1.0 completion)
+
+Work completed outside the GSD roadmap since milestone completion:
+
+### UI/UX Modernization (feature/ui-ux-modernization branch, merged)
+- Modernized wizard UX with smart rows, steppers, transitions, and edit links
+- Redesigned Step 8 (additional work) with flat list layout matching room steps
+- Added 3 switchable color palettes with Slate Blue & Amber as default
+- Polished form UX and step 9 summary translations
+- Fixed step navigation back-click bug, added shortcode lang attribute
+
+### Email Generator Rewrite (`60f82f1`)
+- Rewrote "Weitere Arbeiten" section as single 3-column table matching legacy format
+- Moved grand totals into last room's table instead of standalone section
+- Added Packarbeiten/Anfahrt sub-headers matching legacy HTML structure
+- Added get_field_key/get_field_value/get_field_anzahl helper methods
+
+### Developer Tooling (`f5ca452`)
+- New `Umzugsliste_Test_Email` class with comprehensive test data generator
+- Admin page (Moving List > Test Email) with inline email preview iframe + send button
+- Upgraded dev "Fill" button to "Fill All" — populates every field across all 9 form steps
+- Fixed getFieldVal crash when select has no selection (defensive coding)
+
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 11
+- Total roadmap plans completed: 11
 - Average duration: ~24 min per plan
 - Total execution time: ~4.5 hours
 
@@ -35,13 +57,14 @@ Progress: ██████████ 100% (11/11 plans)
 | 6 | 1 | Form handler, email generator, wp_mail() integration |
 | 7 | 1 | Captcha verification and inline validation |
 | 8 | 2/2 | Bug fixes & legacy parity (gap closure) |
-| 9 | 2/2 | Internationalization (gap closure) ✓ |
-| 10 | 1/1 | Post-release fixes (manual testing bugs) ✓ |
+| 9 | 2/2 | Internationalization (gap closure) |
+| 10 | 1/1 | Post-release fixes (manual testing bugs) |
 
 **Overall Trend:**
 - Phases 1-7 completed successfully
 - Milestone audit found 4 gaps requiring phases 8-9
 - Manual testing found 3 runtime bugs requiring phase 10
+- Post-milestone: UI modernization, email format correction, dev tooling
 - No blockers encountered
 
 ## Accumulated Context
@@ -72,6 +95,10 @@ Recent decisions affecting current work:
 | 10 | Rename day/month/year fields to umzug_day/umzug_month/umzug_year | WordPress reserved query vars caused 404 on form POST |
 | 10 | Move handler instantiation to init_hooks() | init callback too late for handler's own init hook |
 | 10 | Add CPT submission details meta box | No way to view stored submission data in admin |
+| Post | Weitere Arbeiten as single 3-column table | Matches legacy format exactly — one table with sub-section headers |
+| Post | Grand totals in last room's table | Legacy places grand totals as final rows of last room table |
+| Post | Test email admin page with iframe preview | Instant verification of email output without filling the full form |
+| Post | Fill All dev button (WP_DEBUG only) | Populates every form field for rapid end-to-end testing |
 
 ### Deferred Issues
 
@@ -85,7 +112,7 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-02-07
-Stopped at: Documented phase 10 post-release fixes - PHASE 10 COMPLETE ✓
+Last session: 2026-02-13
+Stopped at: Test email admin page + Fill All button complete and committed
 Resume file: None
-Next up: All phases complete! Plugin shipped and working end-to-end.
+Next up: All roadmap phases complete. Plugin is functional and polished. Available for new milestone or ad-hoc work.

umzugsliste.php

@@ -3,7 +3,7 @@
  * Plugin Name: Umzugsliste
  * Description: Email-basiertes Möbelauswahlsystem für Siegel Umzüge
  * Version: 1.0.0
- * Author: Siegel Umzüge
+ * Author: Viktor Miller
  * Text Domain: siegel-umzugsliste
  * Domain Path: /languages
  */