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# Implementation Summary

**Session ID**: `phase18-session09-web-quest-board-typed-cards` **Package**: apps/web **Completed**: 2026-06-10 **Duration**: 20 minutes

***

## Overview

Implemented the web-side Quest Board typed card surface for Phase 18. The session replaced the string-only idle suggestion list with typed multi-source cards derived from canonical `suggestion_update` snapshots, added pure normalization and summary helpers, preserved legacy `idle_suggestion` compatibility, and rendered the Quest Board with clear loading, empty, offline, malformed, and scan-in-progress states.

***

## Deliverables

### Files Created

| File                                     | Purpose                                                                                        | Lines |
| ---------------------------------------- | ---------------------------------------------------------------------------------------------- | ----- |
| `apps/web/src/lib/questBoard.ts`         | Pure normalization, typed card derivation, metadata helpers, summary state, and legacy mapping | \~360 |
| `apps/web/src/lib/questBoardModel.ts`    | Display-model helpers and card conversion logic                                                | \~220 |
| `apps/web/tests/questBoard.test.ts`      | Normalization and summary unit coverage                                                        | \~260 |
| `apps/web/tests/questBoardStore.test.ts` | Store reducer coverage for canonical and legacy events                                         | \~220 |
| `apps/web/tests/QuestBoard.test.tsx`     | Component rendering and state coverage                                                         | \~240 |

### Files Modified

| File                                                                                       | Changes                                                                                                             |
| ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------- |
| `apps/web/src/store/useGameStore.ts`                                                       | Replaced string-only Quest Board state with typed cards, summary data, scan status, and canonical snapshot handling |
| `apps/web/src/components/QuestBoard.tsx`                                                   | Rendered typed cards, summary buckets, metadata chips, and explicit state banners                                   |
| `apps/web/src/App.tsx`                                                                     | Switched the surface count to the typed Quest Board summary                                                         |
| `apps/web/tests/MobileAccessibility.test.tsx`                                              | Updated accessibility expectations for the new Quest Board surface                                                  |
| `.spec_system/specs/phase18-session09-web-quest-board-typed-cards/tasks.md`                | Marked all session tasks complete                                                                                   |
| `.spec_system/specs/phase18-session09-web-quest-board-typed-cards/implementation-notes.md` | Recorded the task-by-task implementation log and validation evidence                                                |

***

## Technical Decisions

1. **Pure normalization before store mutation**: malformed snapshot entries are filtered or downgraded before Zustand state changes, so a bad payload cannot blank the cockpit.
2. **Contract-backed typed cards**: the web card model mirrors the protocol snapshot sources and keeps display logic deterministic for Session 10.
3. **Compatibility without authority drift**: legacy `idle_suggestion` frames still render, but canonical `suggestion_update` snapshots take precedence.
4. **Explicit UI states**: loading, empty, offline, malformed, and scan-in-progress conditions are all visible and testable.

***

## Test Results

| Metric   | Value        |
| -------- | ------------ |
| Tests    | 2633         |
| Passed   | 2632         |
| Coverage | Not reported |

***

## Lessons Learned

1. Keeping the normalization boundary pure made the malformed-entry cases easy to validate with unit tests.
2. Separating display-model helpers from the store reducer kept the component surface smaller and easier to reason about.

***

## Future Considerations

Items for future sessions:

1. Add accept, dismiss, hero assignment, and scan trigger actions in Session 10.
2. Add keyboard shortcut handling and help overlay updates in Session 10.

***

## Session Statistics

* **Tasks**: 21 completed
* **Files Created**: 5
* **Files Modified**: 6
* **Tests Added**: 3
* **Blockers**: 0 resolved


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