Refresh Anycast color, typography, and spacing

[musepy]

What

• Add centralized Anycast 2.0 color, typography, spacing, radius, and reusable component tokens.
• Apply matching light and dark themes that follow system appearance, with readable secondary text at both endpoints.
• Give the full player a dedicated dark treatment with blurred artwork, a five-stop dark overlay, light status bar, text-safe controls, and high-contrast settings controls.
• Replace full-card playback fills with compact progress tracks: 4 pt on episode cards and the mini player, 6 pt on the full scrubber.
• Cover play/pause, selected/unselected, enabled/disabled, loading, empty, and progress 0/partial/complete/unknown visual states without Material-purple fallbacks.
• Complete transcript and subscription state presentation instead of showing blank or misleading empty screens during async work.

State audit

• Light/dark: list, empty state, navigation, cards, mini player, player, settings, and subscriptions reviewed.
• Playback: play and pause controls reviewed; loading and unavailable controls disable correctly.
• Progress: normalized 0/partial/complete states; unknown/loading/unavailable full scrubbers are non-seekable and labelled.
• Settings: both sliders have visible active/inactive tracks; switches have distinct selected/unselected and disabled colors.
• Transcript: unavailable, generate prompt, processing, failed, saved-data loading, ready, translation loading, translation failure, selection, chat/export actions, and artwork fallbacks have explicit visual states. Prompt and status-bar endpoints were reviewed on the simulator.
• Subscriptions: loading, error/retry, empty, content, artwork loading, and artwork failure states are explicit; light and dark empty endpoints were reviewed on the simulator.
• Contrast: secondary text uses readable endpoints; player/transcript copy stays text-safe over the worst bright-artwork composite; inverse-surface card actions remain adaptive.

Impact

Presentation and visual-state handling only: colors, text styling, spacing, surfaces, progress presentation, async presentation flags, and control states. No data schema, persistence format, API, release version, signing, or store behavior changes.

Validation

• ✅ dart analyze on all follow-up changed source/test files — no issues
• ✅ flutter test --no-pub — 19 tests passed
• ✅ git diff --check
• ✅ flutter build ios --simulator --debug --no-pub
• ✅ iPhone 17 Pro simulator review — light/dark list and subscription empty states, player play/pause, 0/partial progress, settings sliders/switches, transcript prompt, artwork fallback, and light status bar
• ✅ Required PR CI — Analyze/Test, Android release bundle, and unsigned iOS build all passed
• ℹ️ Simulator data contained 0 transcript, 0 translation, and 0 subscription rows; ready/translation/content states were verified deterministically without generating or modifying user data
• ⚠️ flutter pub get --enforce-lockfile — Flutter 3.44.6 would update five SDK transitive dependencies (characters, matcher, material_color_utilities, meta, test_api); pubspec.lock was left unchanged
• ⚠️ local full flutter analyze --no-fatal-infos --no-pub exits nonzero on the existing experimental profilesSampleRate warning at lib/main.dart:62; CI uses the repository’s fixed toolchain and is authoritative

All required CI checks pass. Ready for owner review; not merged.

[musepy]

Follow-up visual-state audit is now pushed in 9885074.

This pass covers the gaps from the simulator review: player control colors, blurred/darkened artwork background, settings text and both sliders, selected/unselected and disabled switches, compact episode/mini-player progress, synchronized remaining-time text, and non-seekable loading/unknown progress states. Light and dark endpoints were checked on an iPhone 17 Pro simulator, and the expanded suite passes all 14 tests.

@sljeff this is ready for another review. I have not merged it; the new CI run is still in progress.

[musepy]

Additional audit requested for transcript and subscriptions is pushed in 5b097d2.

Transcript now has explicit unavailable, prompt, processing, failed, loading, ready, translation-loading/failure, artwork fallback, and action states; the generate CTA and iOS status bar were corrected for contrast. Subscriptions now distinguish loading/error/empty/content and provide artwork loading/error fallbacks instead of briefly presenting loading as empty.

Local simulator data had no transcript, translation, or subscription rows, so I did not trigger AI generation or fabricate user data. The non-present states are covered by deterministic state/component tests; the suite now passes 19 tests. @sljeff please review this latest commit after the restarted CI run completes. I have not merged the PR.

[musepy]

Final CI for 5b097d2 is green: Analyze/Test, Android release bundle, and unsigned iOS build all passed. @sljeff the complete visual-state audit, including transcript and subscriptions, is ready for owner review. PR remains open and unmerged.