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feat: add catastro SSOT integration, 3DGS hybrid pipeline, casa demo v3

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- SPEC: add User Story 0 (Property Setup via Catastro) as P1 entry
- SPEC: add catastro_data and catastro_imports tables to data model
- PLAN: add Phase 2A (Catastro Integration) with 8 tasks
- AGENTS.md: add 3 key decisions (Catastro SSOT, 3DGS hybrid, plan inputs)
- Demo v3: Spanish apartment (C/ Altabix 24, 3ºB, Elche), 7 rooms,
  upload panel for catastro/DXF, proper collisions on all doors
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Hermes
2026-05-29 01:03:32 +02:00
parent 3db7e47994
commit be3221e93d
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.specify/specs/001-interiorscan-mvp/SPEC.md
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## User Scenarios & Testing
### User Story 0 — Property Setup via Catastro (Priority: P1) 🎯 MVP Entry
As a real estate agent, I enter a property address and InteriorScan fetches the building's exterior footprint from the Spanish Cadastro (INSPIRE WFS), so the 3D model starts with verified exterior walls before I upload any photos.
**Why this priority**: The Catastro provides the SSOT for exterior geometry — wall outlines, building height, and number of floors. This eliminates manual exterior wall drawing and ensures dimensional accuracy. Interior walls come from photos or user-uploaded floor plans.
**Independent Test**: Enter "C/ Altabix 24, Elche" → refcat is resolved → building polygon is displayed on a minimap → exterior walls are generated in the 3D scene.
**Acceptance Scenarios**:
1. **Given** I am creating a new project, **When** I type a Spanish address and submit, **Then** the system resolves it to a cadastral reference (refcat) and fetches the building footprint polygon from INSPIRE WFS.
2. **Given** a building footprint is fetched, **When** the 3D scene initializes, **Then** exterior walls appear at the correct dimensions matching the Catastro polygon, with the correct number of floors.
3. **Given** the Catastro lookup fails, **When** no polygon is found, **Then** the system falls back to manual wall drawing or DXF/SVG upload.
### User Story 1 — Upload & Process (Priority: P1) 🎯 MVP Core
As a real estate agent, I upload 30-100 photos of a property and InteriorScan reconstructs the interior as a 3D walkthrough, so I can share a link with potential buyers who navigate it like a first-person game.
As a real estate agent, I upload 30-100 photos of a property and InteriorScan reconstructs the interior as a 3D walkthrough, so I can share a link where potential buyers navigate it like a first-person game.
**Why this priority**: Without reconstruction, nothing else matters. This is the core value proposition.