chore: release Anvil 0.4.0, Lathe/Temper/Knurl 0.3.0, Planish/Braze/Ballast/Forge 0.2.0, Crucible/Weld 0.4.0

The producer-feedback round: stable note tracking, the NOTE pitch source with
Key lock and Follow bends, unsure-means-neutral fallbacks, Anvil's Enhance
mode, MAIN and ADVANCED pages, Ballast on Grid by default, and Crucible's
sure-note slice names with a song key.

Adds docs/pitch.md for the shared pitch source, updates every changed
plugin's README and changelog, the release table, the editor previews, the
website bullets, and the status in docs/ideas.md.

docs/ideas.md

@@ -210,6 +210,44 @@ in Patina 0.5.0.
 5. Front-panel pass on every plugin: a main control, outcome names, and an
    Advanced fold.
 
+### Status (2026-11-06)
+
+Done in Anvil 0.4.0, Lathe 0.3.0, Temper 0.3.0, Knurl 0.3.0, Planish 0.2.0,
+Braze 0.2.0, Ballast 0.2.0, Forge 0.2.0, Crucible 0.4.0 and Weld 0.4.0. Not
+tested in FL Studio yet, and the tester has not been asked which Anvil they
+expected.
+
+1. Done. The tracker needs a steady pitch for 40 ms to start a note (80 ms an
+   octave down, 200 ms up), holds within a quarter semitone, ends a note after
+   20 ms of silence, and reports unsure after about 40 ms of disagreeing reads.
+   Follow bends keeps the old fast behaviour. The corpus is synthetic
+   (`common-dsp/src/stems.rs`, `examples/tracker_report.rs`): extra note starts
+   per second on formant, wobble and reese fell from 28.5, 11.8 and 1.3 to 0.
+   Wobble is still unsure 37 % of the time and the hard growl 4.5 %.
+2. Done: NOTE source with a note picker, Key lock (minor, major, root only) and
+   Follow bends, shared through `common-params`. Ballast has no NOTE: its parts
+   need note starts from the audio or MIDI.
+3. Done. Anvil plays the original sub, Lathe passes the audio, Knurl fades out,
+   Temper, Planish and Braze hold the last sure note. Planish slides its edges
+   over 6 ms on a new note. Crucible names slices only on a sure note and
+   spells them for a song key.
+4. Done: Replace / Enhance mode, and a MAIN page with Mode, Split and Sub level.
+5. Done for Anvil, Lathe, Temper, Knurl, Planish, Braze, Forge and Weld: a MAIN
+   page and an ADVANCED switch. Lathe labels harmonics in Hz. Ballast defaults
+   to Grid.
+
+Still open:
+
+- Real stems. Score the tracker on 5–10 real drops with `tracker_report` and
+  tune on those, not only on the synthetic corpus.
+- Outcome names. Controls keep their old names; only the pages changed.
+- Temper with fixed-Hz Floor and Bright as the default.
+- Weld's single ALIGN button.
+- Panel pass for Quench, Patina, Crucible, Rivet and Ballast. Their panels were
+  already short, so they were left as they are.
+- `tools/editor-check` has a clippy `chunks_exact` lint outside the plugin
+  checks.
+
 ## Research findings (2026-11)
 
 From the papers in `research/` (local, not committed). Each finding names where
@@ -281,7 +319,8 @@ it goes in the suite. They are starting points to test by ear, not rules.
 
 Replaces the band below a split frequency with a clean mono sine that follows
 the bass pitch, at one level and one start phase for every note. Pitch comes
-from detection with 80 ms lookahead or from MIDI. See [Anvil](anvil/README.md).
+from detection with 80 ms lookahead, from MIDI, or from a set note. Enhance
+mode adds the sine under the original sub instead. See [Anvil](anvil/README.md).
 
 ### Crucible — resampler (problem 3)