Clean up, feature upgrades, and codebase audit fixes

[ParkerM2]

Summary

Major cleanup, feature upgrades, and codebase audit across the Syrnia Tracker extension.

Codebase Audit Fixes

• Remove noImplicitAny override from tsconfig, delete dead code (colorful-logger, const.ts, ColorType)
• Replace uuid with native crypto.randomUUID(), remove unused deps (deepmerge, vite-plugin-node-polyfills)
• Fix all 22+ hardcoded Tailwind colors across 8 files with theme variables
• Extract shared CSV helpers (deduplicate 3 implementations) and time constants (replace magic numbers)
• Consolidate Chrome message listeners into single useGlobalDataSync handler
• Add onError handlers to TanStack Query mutations
• Harden background service worker: error logging, timeout increase, exp bounds validation, runtime type guards
• Split TrackedHistory component (415 → 125 lines) into PeriodSummaryCard + PeriodBreakdownTable
• Remove empty content.css from manifest, silence storage base errors
• Add accessibility: aria-labels, keyboard nav, narrow MutationObserver scope

Calendar Improvements

• DayView untracked EXP fix: Single-hour records show only on their specific hour card (no more duplicates across every overlapping cell). Multi-hour records render as a dedicated overflow row at the top.
• WeekView redesign: Replaced grid of compact CalendarCells with single-column scheduler layout using expandable DayRow cards with full stats (skills, drops, profit, etc.)
• Current summary rows: Added "Today's Total" and "Week Total" rows with "Current" badge at top of Day/Week views
• Reversed week ordering: Saturday (newest) at top, Sunday at bottom — matches DayView's newest-first pattern
• Extracted shared badge styles, formatters, and UntrackedExpCard into Calendar/shared.tsx

Untracked EXP Resolution System (NEW)

• Persistent notification banner under navbar detects unresolved untracked EXP gaps
• Resolution editor expands in-place with editable rows: hour slots, skill dropdowns, exp inputs
• Running totals per skill with color-coded progress (green=exact, red=over, muted=under)
• Loot entry popover for adding known items with quantity to each hour slot
• Save flow creates synthetic CSVRows appended to tracked data — resolved exp appears normally in calendar and loot views
• Dismiss option to mark gaps resolved without creating data
• Multi-gap navigation with prev/next when multiple unresolved periods exist
• Data layer: useUntrackedResolution hook with gap grouping, initial row generation, and save logic
• Storage: resolveUntrackedExpRecords marks records resolved; useUntrackedExp filters them out

Previous Feature Work (on this branch)

• Untracked EXP detection system (session baseline, gap detection, storage with dedup + 90-day retention)
• Navigation redesign with Card wrapper + 3-stage progressive collapse + mobile dropdown
• Zoom feature (50-150%, persisted)
• LootMap "week" grouping + GP total badges
• Farming exp detection

Test plan

• Build extension and load in Chrome
• Verify notification banner appears when untracked EXP exists
• Click banner to expand resolution editor
• Edit exp values and verify running totals update correctly
• Add loot via popover, verify pills appear and are removable
• Save resolution and verify data appears in calendar/loot views
• Dismiss a gap and verify it disappears
• Test multi-gap navigation (prev/next)
• Verify banner collapses and hides when all gaps resolved
• Verify DayView shows single-hour untracked on correct hour only
• Verify WeekView scheduler layout with expandable day cards
• Verify no hardcoded colors — all theme variables

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