Fix Windows Anki startup and overlay regressions (#128)

changes/anki-highlight-word-fallback.md

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+type: fixed
+area: anki
+
+- Fixed Highlight Word not bolding the mined word in Kiku sentence and sentence-furigana fields when the source Yomitan sentence field did not already contain bold markup.

changes/kiku-lapis-word-sentence-card.md

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+type: fixed
+area: anki
+
+- Fixed Lapis/Kiku word cards enriched through SubMiner missing the word-and-sentence marker, which could hide sentence context on the card front.

changes/windows-anki-media-startup.md

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+type: fixed
+area: anki
+
+- Fixed known-word cache refreshes without a configured deck by using AnkiConnect's valid all-notes query instead of `is:note`.
+- Fixed Windows media generation after background launches by recreating missing FFmpeg temp output directories before clipping audio or images.

changes/windows-character-dictionary-mpv-path.md

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+type: fixed
+area: dictionary
+
+- Fixed Windows `SubMiner mpv` shortcut launches so character dictionary auto-sync can fall back to mpv's current video path when app media state is not ready yet.

changes/windows-overlay-hover.md

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+type: fixed
+area: overlay
+
+- Fixed shaky Windows subtitle-bar hover/click interaction when a video attaches to an already-running background SubMiner app.