# Task 1 Report

Status: DONE

Files changed:
- `scripts/check-sgs-hall-poi-adapter.mjs`

Commands run:
- `node scripts/check-sgs-hall-poi-adapter.mjs`

Output summary:
- Smoke script passed. Script now validates:
  1. Finding 1: entrance-derived sourceConfidence branch — entrance-backed halls with nodeId must be `backend-sgs-sdk-hall-entrance`
  2. Finding 2: enforce entrance/reachable-node semantics — entrances without nodeId that match spaces use space-center sourceConfidence, not hall-entrance
  3. Finding 3: avoid hiding duplicate names via Map-by-name only — added assertion that result names are unique, indexed by both name and id for duplicate detection
  4. Whitelist enforcement prevents unrelated types
  5. Unmatched exhibition space with center emits fallback POI
  6. Entrance with missing coordinates falls back to matched space.center
  7. Entrance still recorded even with undefined positionGltf (no coordinates)
  8. **Issue 1 fix**: `backend-sgs-sdk-hall-entrance` sourceConfidence now requires BOTH valid entrance position AND nodeId. Places with coordinates but no nodeId use `backend-sgs-sdk-space-center` instead.
  9. **Issue 2 fixture**: Added place 108 (自然科学展厅【主】出入口1) with coordinates but no nodeId, verifying it matches space center [110, 0, 120] and uses `backend-sgs-sdk-space-center` sourceConfidence, not entrance coordinates.
  10. **Issue 3 fixture**: Added place 109 (地球 科学 展厅 （主）出入口 1) with spacing and brackets to test name normalization matching — successfully matches space 7 despite formatting differences.
  11. **Issue 4 coverage**: Unmatched exhibition space fallback (space 4: 展览坡道) still emits POI with space-center semantics.

Commits created:
- `test: refine SGS hall POI source semantics`

Self-review notes:
- The semantic gap fix ensures sourceConfidence correctly requires BOTH position and nodeId for hall-entrance classification
- Fixture 108 validates the space-center fallback for entries with coordinates but no routing identity
- Fixture 109 demonstrates that name normalization handles real-world formatting variations (spacing, brackets, punctuation)
- All fixtures consolidate into existing POIs, maintaining clean POI count (7) while improving semantic coverage
- The script is standalone Node coverage for the intended adapter rules because this repository has no configured test runner
- The production adapter implementation is covered by Task 2 in the plan
- Fixtures now include:
  - Space 8 (古生物展厅) with entrance 105 that has nodeId n105 for backend-sgs-sdk-hall-entrance assertion
  - Place 107 (自然科学展厅 出入口) without nodeId to assert space-center semantics when entrance lacks routing identity
  - Place 108 (自然科学展厅【主】出入口1) with coordinates but no nodeId verifying space.center position precedence
  - Place 109 (地球 科学 展厅 （主）出入口 1) with spacing/brackets demonstrating name matching robustness
  - Name uniqueness validation prevents silent duplicate masking

Concerns:
- None.