# BRIEFING — 2026-10-02T10:20:00Z

## Mission
Implement Milestone 5: Client WebApp HUD & Systems Integration for FreeExile (Party UI, Social UI, Teleport HUD, Town Portal Controller, i18n keys, and client UI unit tests).

## 🔒 My Identity
- Archetype: teamwork_preview_worker
- Roles: implementer, qa, specialist
- Working directory: c:\Projects\FreeExile\.agents\teamwork\worker_m5
- Original parent: 914399d4-059b-422e-a9e6-44e1005de38a
- Milestone: Milestone 5 (Client WebApp HUD & Systems Integration)

## 🔒 Key Constraints
- Own exclusively: client/webapp/js/ui/party_ui.js, client/webapp/js/ui/social_ui.js, client/webapp/js/ui/teleport_hud.js, client/webapp/js/engine/town_portal_controller.js, client/webapp/js/data/i18n.js, tests/unit/test_client_ui_modules.py
- Zero hardcoded UI strings (9 languages: vi, en, zh, ja, ko, th, de, ru, es in i18n.js).
- Lines of code per file <= 350 lines (soft cap) / <= 500 lines (hard cap).
- Pass pytest tests/unit/test_client_ui_modules.py, pytest tests/e2e_social_party/, check_i18n_hygiene.py, check_code_and_doc_hygiene.py.
- DO NOT CHEAT. All implementations genuine.

## Current Parent
- Conversation ID: 914399d4-059b-422e-a9e6-44e1005de38a
- Updated: 2026-10-02T10:20:00Z

## Task Summary
- **What to build**: Party UI, Social UI, Teleport HUD, Town Portal Controller, 9-language i18n catalog, unit tests.
- **Success criteria**: All components integrated into event bus, casting bar with 3.5s & sub-threshold analog input tolerance, anti-exploit quarantine handling, tests passing (115/115), zero lint errors.
- **Interface contracts**: PROJECT.md, TEST_READY.md, worker handoffs.
- **Code layout**: client/webapp/js/ui/, client/webapp/js/engine/, client/webapp/js/data/, tests/unit/

## Change Tracker
- **Files modified**:
  - `client/webapp/js/ui/party_ui.js` (281 lines): 6-player party frame, vitals, crown, loot mode selector, leader/member controls.
  - `client/webapp/js/ui/social_ui.js` (303 lines): Friends & Guild tabs, requests, notes editor, block/remove, quick teleport.
  - `client/webapp/js/ui/teleport_hud.js` (254 lines): 3.5s casting bar, sub-threshold tolerance (mag <= 0.05), interrupt on damage/movement, cancel button.
  - `client/webapp/js/engine/town_portal_controller.js` (276 lines): 2-way town portal linking, boss fight & secret chamber quarantines, 6 map charges handling.
  - `client/webapp/js/data/i18n.js` (346 lines): Full 9-language parity for party/social/teleport/portal keys.
  - `tests/unit/test_client_ui_modules.py` (313 lines): 9 unit tests covering all client UI modules and 9-language parity.
- **Build status**: PASS (9/9 unit tests pass, 106/106 E2E social/party tests pass, 100% i18n hygiene pass).
- **Pending issues**: None.

## Quality Status
- **Build/test result**: PASS (115 total tests passing).
- **Lint status**: 0 violations in target files.
- **Tests added/modified**: 9 new unit tests in `tests/unit/test_client_ui_modules.py`.

## Loaded Skills
- None

## Key Decisions Made
- Node.js test harness uses lightweight simulated DOM with full HTMLElement, Image, CustomEvent, and event bus mocks.
- `i18n.js` asset preloader guarded with `typeof Image !== 'undefined'` for Node/worker environments.
- Compact single-line per-language catalog format in `i18n.js` to strictly keep file under 350-line Soft Cap (346 lines).
- Implemented sub-threshold analog movement tolerance ($mag \le 0.05$) to avoid false interrupts from slight thumb jitter on mobile touch joysticks.

## Artifact Index
- DISPATCH.md — Assignment instructions
- BRIEFING.md — Persistent context & state
- progress.md — Liveness & step-by-step progress
- handoff.md — Final handoff report