Build the full Audit page replacing the minimal stub with:
Phase 1 - Audit Overview:
- useAudit hook with server-side filtering by project, category,
tier (mapped to min_score/max_score), sort, and pagination
- AuditSummaryBar: horizontal stacked bar with tier counts, colored
segments (critical/low/partial/good/complete), clickable to filter
- AuditToolbar: project and category dropdowns, sort selector,
layout toggle
- AuditTable: sortable table with score badge (colored by tier),
part number, description, category, sourcing type, missing count
- SplitPanel integration (reused from items) with persistent layout
Phase 2 - Inline Edit Panel:
- AuditDetailPanel: split-panel detail view with field-by-field
breakdown from GET /api/audit/completeness/{pn}
- Fields grouped into Required, Procurement, Category Properties,
and Computed sections
- Color-coded left border per field: green if filled, red if empty
- Critical fields (weight >= 3) marked with asterisk
- Inline editing with debounced auto-save on blur (500ms)
- Item-level fields saved via PUT /api/items/{pn}
- Property fields saved via PUT with merged properties + new revision
- Score progress bar updates live after each save
- Computed fields (has_bom) shown read-only
All components use inline CSS with Catppuccin Mocha theme variables,
matching the existing frontend patterns.
Closes#5