Implement comprehensive comic metadata display features on the SSR book detail
page, supporting all 8 metadata fields from ComicInfo.xml and other sources.
## Template Changes (book_detail.templ)
### Step 1: Reading Direction Badge
- Display directional badge (RTL, LTR, VERTICAL) for manga/comics
- Uses 📖 icon with uppercase direction text
- Auto-hides when direction is "auto" (default)
- Styled with accent color for visibility
### Step 2: Community Rating Display
- Show pre-existing community rating from metadata (0.0-10.0 scale)
- Distinct from user ratings with visual differentiation
- Uses renderStars() helper for visual star display
- Shows both stars and numeric score (e.g., "★★★★☆ 8.5 / 10")
- Smaller, subtler styling than user rating
### Step 3: Comic-Specific Badges
- Age Rating: Content maturity indicator
- Black & White: Visual style badge
- Story Arc: Narrative arc name with 📚 icon
- Badges styled as pills with subtle borders
- Only display when values are present
### Step 4: Universal Series Info
- Series Count: Total items in series
- Volume: Volume/omnibus number
- Imprint: Publisher imprint (e.g., Vertigo)
### Step 5: Comic-Specific Metadata
- Manga Type: Raw/Comic/Manga classification
- Scan Information: Scanner group, resolution
- Alternate Series: Different series numbering
### Step 6: Summary Section
- Display ComicInfo.xml summary when present
- Separate from description field
- Sanitized HTML output with bluemonday
- Scrollable container for long summaries
### Step 7: Metadata Notes
- Technical notes from metadata files
- Internal/useful information (scanner, source, etc.)
- Card-style display with clear typography
### Step 8: Web URL Link
- External link to info sources (Goodreads, ComicVine, etc.)
- Opens in new tab with security attributes
- Displays clean domain name
## Utils Changes (templates/utils.go)
Added helper functions:
- getAlternateSeries(): Extract alternate series from JSONB
- getDomainName(): Extract clean domain for display
- formatAlternateInfo(): Format readable alternate series string
## Implementation Plan
Updated FRONTEND_IMPLEMENTATION_PLAN_COMIC_METADATA.md with:
- Disabled markdownlint for MD013 (line length)
- Added spacing for readability
## Technical Details
- All fields use pgtype.Text/Int4/Bool for NULL handling
- Template conditionals check Valid flag before accessing values
- Consistent styling using CSS custom properties
- HTML escaping for security (except summary with bluemonday)
- Responsive design with mobile-friendly layouts
Related: Database schema already supports all metadata fields