epic property data and storage

[MostafaShraief]

1. Epic Overview

Foundation for everything else: every uploaded file lives in one shared store, property technical specs are validated once, and image upload/serving rules are enforced everywhere.

2. Contains

• shared file storage foundation #51 — Shared File Storage Foundation
• property entity and technical specs #52 — Property Entity & Technical Specs Validation
• image upload rules and validation #53 — Image Upload Rules & Validation
• serving image files by id #54 — Serving Image Files by ID

3. Dependency Graph

flowchart LR
    A["#51 · Shared File Storage"] --> C["#53 · Image Upload Rules"]
    A --> D["#54 · Serving Image Files"]

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4. Resources & References

• External deps: none — foundation epic, nothing blocks it
• Blocks: epic advertisement publication #83 (Advertisement Publication), epic media management #86 (Media Management)