# Technical Changelog

**Started:** 2026-05-10

Chronological log of technical changes (architecture decisions, refactors, dependency upgrades, schema changes, security fixes). Populated over time by `/paul:apply` and ad-hoc edits.

Format per entry:
```
## YYYY-MM-DD — short title
- What changed (file paths)
- Why
- Impact / migration notes
```

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## 2026-05-10 — Initial codebase mapping
- Created `.paul/codebase/` (stack, architecture, structure, conventions, testing, integrations, concerns, db_schema, tech_changelog)
- Why: bootstrap PAUL workflow; document the PrestaShop 1.7.8.11 install + custom Cross Sell PRO module before further work
- Impact: future phases reference these documents instead of re-exploring the codebase

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