fix(overlay): defer autoplay release for untokenized startup priming

- Autoplay-ready gate now ignores untokenized subtitle payloads while tokenization warmup is pending, so playback doesn't resume before the first tokenized cue
- Wire isTokenizationReady dep through main.ts and update gate/wiring tests accordingly
- Drop stale release/release-notes.md, add changelog entry under changes/

release/release-notes.md

@@ -1,89 +0,0 @@
-## Highlights
-### Added
-
-- **Sentence Audio Normalization**
-  - Generated sentence audio is now normalized to -23 LUFS by default, giving mined clips consistent volume across shows.
-  - Clips captured from playback can also mirror mpv's software volume curve, with a limiter to prevent clipping when boosted.
-  - Both behaviors are controlled independently and can be turned off in the Anki Connect media settings.
-
-- **Watch History Browser**
-  - Added `subminer -H` / `--history` to browse local watch history, replay the last episode, continue to the next one, or jump to any past episode.
-  - Works with fzf or rofi; the rofi picker shows AniList cover art already stored in the stats database.
-
-### Changed
-
-- **Known-Word Highlighting Accuracy**
-  - Highlighting now compares subtitle and Anki-card readings, so it no longer confuses homographs like 床/とこ vs 床/ゆか or unrelated kanji that happen to share a reading.
-  - Standalone suffix words such as さん or れる are now excluded from JLPT/frequency/N+1 annotations by default, matching how particles and interjections are already treated (configurable if you'd rather keep them annotated).
-  - Cards without readings still fall back to word-only matching; the highlighting cache upgrades automatically with no action needed.
-
-- **Stats Trend Charts**
-  - Overhauled trend charts with persisted title visibility, per-chart title limits, "top" and "most recent" ranking modes, an option to show or hide empty days, calendar-aligned periods, and sortable multi-column tooltips.
-
-- **New App Icon**
-  - Replaced the SubMiner icon with new pixel-art submarine artwork contributed by an anonymous community member, now used across the app icon, tray, notifications, README, docs site, and stats page.
-
-- **Launcher Preview Layout**
-  - fzf previews now sit below the launcher menu instead of beside it, giving long titles and metadata more horizontal room.
-
-### Fixed
-
-- **Character Name Recognition**
-  - Character dictionaries now correctly split unspaced AniList native names and validate readings, so overlay portraits, highlights, and hover lookups work reliably even without MeCab installed.
-  - Name matches survive punctuation and unmatched text and no longer get overridden by generic dictionary matches or wrongly split from longer words like 空気.
-  - Existing installs regenerate automatically and upgrade to exact splits once MeCab is available — no action needed.
-
-- **Frequency & JLPT Highlighting Coverage**
-  - Content adverbs (確かに, やはり) and kanji nouns MeCab tags as non-independent (日, 点, 以外) are now correctly included in frequency/JLPT highlighting and vocabulary stats.
-  - Lexicalized kana expressions like かといって keep their frequency annotations, while interjections, pronouns, and pure grammar fragments are still filtered out as noise.
-
-- **Unparsed Text Hover Lookup**
-  - Subtitle text Yomitan can't fully parse — truncated inflections like とこ戻ろ… or elongation runs like ぅ～ — is hoverable again for dictionary lookup.
-  - These runs stay excluded from frequency/JLPT highlighting and vocabulary stats, same as bracketed captions and punctuation-only text.
-
-- **Karaoke-Style Secondary Subtitles**
-  - Secondary subtitles no longer flood the screen with dozens of one-syllable lines during karaoke-style openings and endings.
-  - Repeated events now collapse into a single line, and the secondary subtitle area stays capped to a strip at the top.
-
-- **Kiku Field Grouping Reliability**
-  - The manual field-grouping dialog now stays above fullscreen mpv on Hyprland/Wayland and keeps working across repeated attempts.
-  - Abandoned grouping windows close automatically after a timeout or failure, and each attempt now reports a clear success or error, including when the original card can no longer be loaded.
-
-- **Background Stats Server Startup**
-  - Background `subminer app` launches now start the stats server automatically when enabled, and skip startup if one is already running.
-
-- **AniList Cover Art Timing**
-  - Stats now fetches the best-match AniList cover as soon as a new series starts playing, so artwork appears in the timeline immediately instead of only after visiting the series page.
-  - Existing series missing art get backfilled automatically on the next Stats page visit.
-
-- **YouTube Direct Stream Playback**
-  - Fixed direct YouTube stream extraction so mpv's EDL stream URLs are parsed correctly, preventing corrupted signed video URLs and the resulting ffmpeg 403 errors.
-
-## What's Changed
-
-- fix(youtube): parse mpv EDL stream URLs with byte-length guards by @ksyasuda in #134
-- Normalize generated Anki audio by default by @ksyasuda in #135
-- feat(launcher): add -H/--history command to browse local watch history by @ksyasuda in #136
-- fix(overlay): prevent field grouping modal from freezing overlay on Hyprland by @ksyasuda in #138
-- fix(overlay): collapse karaoke syllable spam in secondary subtitles by @ksyasuda in #139
-- feat(stats): Trends dashboard overhaul — title visibility, ranking modes, calendar-accurate windows, tooltips by @ksyasuda in #140
-- feat(branding): replace app icon with contributed pixel-art set by @ksyasuda in #141
-- feat(anki): reading-aware known-word matching (cache v3) by @ksyasuda in #142
-- fix(stats): start stats server on background app launch by @ksyasuda in #144
-- fix(tokenizer): keep unparsed Yomitan tokens hoverable by @ksyasuda in #145
-- fix(overlay): resolve unspaced Japanese name splits and scan recovery by @ksyasuda in #146
-- fix(tokenizer): prevent grammar tokens from borrowing known-word highlight via unrelated readings by @ksyasuda in #147
-- fix(stats): fetch cover art eagerly at session start instead of on series page visit by @ksyasuda in #148
-
-## Installation
-
-See the README and docs/installation guide for full setup steps.
-
-## Assets
-
-- Linux: `SubMiner.AppImage`
-- macOS: `SubMiner-*.dmg` and `SubMiner-*.zip`
-- Windows: `SubMiner-*.exe` and `SubMiner-*-win.zip`
-- Optional extras: `subminer-assets.tar.gz` and the `subminer` launcher
-
-Note: the `subminer` wrapper script uses Bun (`#!/usr/bin/env bun`), so `bun` must be installed and on `PATH`.