feat(anki): add media timing review before card creation (#203)

changes/anki-update-notifications.md

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+type: fixed
+area: anki
+
+- Dismissed active overlay card-update progress when notification settings switch to OSD before an update finishes.

changes/hyprland-modal-overlay-flicker.md

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+type: fixed
+area: overlay
+
+- On Hyprland, opening a modal window (timing review, Jimaku, session help, and the others) while mpv is fullscreen no longer makes the visible overlay flicker while the modal loads. The overlay now stays on screen untouched until the modal is ready, then hides as the modal appears.

changes/media-timing-review.md

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+type: added
+area: mining
+
+- Added optional pre-generation timing review for word, sentence, and audio cards with a compact speech-weighted waveform that flattens steady background noise so dialogue edges are easy to see, clearly labeled mined-line boundaries, a clip end that moves back to where the line's dialogue actually ends once the waveform loads (subtitles usually linger past speech), drag and keyboard adjustments, audio preview with a sweeping playhead that plays the clip to its true end even on high-latency outputs such as Bluetooth headphones, exact screenshot and AVIF timing, cancellation choices that include keeping a card without media, and a session-only runtime toggle.
+- The timing review can pull any number of previous and next subtitle lines onto the card: `P`/`N` (or the Prev/Next steppers) add lines one at a time, Shift removes them, the sentence preview highlights exactly what the card will contain, and the clip range and line boundary markers on the waveform follow the added lines automatically.

changes/mining-stale-caption-row.md

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+type: fixed
+area: mining
+
+- Mining from the overlay no longer copies a lingering row of the previous broadcast caption onto the card sentence. The mined line and its clip timing now come from the parsed cue the overlay is showing, falling back to mpv's live text only when the cue list cannot explain it.

changes/remote-media-window-cache.md

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+type: changed
+area: mining
+
+- Mining a card from a remote stream (Jellyfin and other HTTP sources) now downloads the clip window once into a temporary file and reuses it for the timing review waveform, audio preview, audio extraction, and screenshot, instead of re-fetching the stream for every step. The temporary window is removed after ten minutes without use or on exit.