# MTG Python Deckbuilder v4.5.1

## Summary
Adds an in-app documentation portal with 13 user guides accessible directly at `/help`, contextual help icons throughout the build workflow, and a consistent page header style across all pages.

## Added

### Web documentation portal
All 13 user guides are now accessible directly in the app at `/help` — no need to navigate to GitHub. A guide index lists every guide with a short description; each guide page renders full markdown with heading anchors for deep linking.

### In-guide table of contents
Each guide page shows a sidebar with an auto-generated "On This Page" section linking to all headings in the current guide. Collapses to a hamburger toggle on mobile.

### Contextual help links
Small help icons appear throughout the UI — in the build wizard, bracket selector, owned cards mode, partner selection, and other areas — linking directly to the relevant guide section in a new tab without interrupting the current workflow.

### New guide: Multi-Copy Package
New dedicated guide covering all multi-copy card archetypes, count recommendations, exclusive groups, bracket interaction, and FAQ.

### Guide enhancements
All 13 guides end with a See Also section linking to related guides. FAQ sections added to 5 guides (Bracket Compliance, Include/Exclude, Locks/Replace/Permalinks, Owned Cards, Budget Mode). `theme_browser.md` documents the 4-factor badge scoring formula; `bracket_compliance.md` includes a full enforcement matrix.

### Consistent page headers
All pages now share a unified header style — same font size, description line, and bottom separator — replacing the previous mix of different heading sizes and layouts.

### "Help & Guides" button on home page
Quick link to the documentation portal from the home page.

## Changed

### Docker: `docs/` volume mount
`docker-compose.yml` and `dockerhub-docker-compose.yml` now mount `./docs` into the container so documentation edits reflect immediately without a container rebuild.

## Fixed

- **Bug: missing `idx` argument** in `project_detail()` inside `theme_preview.py` caused theme preview pages to crash.
- **Bug: `build_permalinks` router not mounted** in `app.py` caused all permalink-related endpoints to return 404.
- **Pydantic V2 deprecation warning** silenced: `DeckExportRequest` now uses `model_config = ConfigDict(...)`.