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/knurl/CHANGELOG.md

@@ -1,7 +1,16 @@
 # Knurl changelog
 
-## Unreleased
+## 0.3.0
 
+- Add **NOTE** as a pitch source: Knurl follows a note you set, and the audio
+  only starts and stops it. Add Key lock and Follow bends for AUDIO detection.
+- Detection holds its notes: a new note needs a steady pitch for 40 ms, octave
+  jumps need 80 ms down and 200 ms up. Growls, wobbles and formant basses no
+  longer flicker between notes. Follow bends brings back the old fast behaviour.
+- When detection is unsure, Knurl fades its texture out, and the readout shows
+  **?**.
+- The editor opens on a MAIN page. **ADVANCED** in the header adds Edge, the
+  Grit burst's Tone, Position and Length, and Gate.
 - The engine is now a module that also runs inside Forge. The sound is
   unchanged; the latency is one sample longer.
 

docs/knurl/README.md

@@ -1,7 +1,7 @@
 # Knurl
 
 Knurl gives every cycle of the note its own level, timing and grit. Current
-version **0.2.0**.
+version **0.3.0**.
 
 Knurling presses a ridged pattern into metal. Riddim and dubstep basses get their
 character the same way, from surface texture: rattle, growl, fry, grit. Usually
@@ -22,6 +22,10 @@ redistributed packages.
 
 ## Work with it
 
+The editor opens on the **MAIN** page with the pattern, Level, Time, Grit, Mix
+and Output. The **ADVANCED** switch in the header adds Edge, the Grit burst's
+Tone, Position and Length, and Gate.
+
 1. Play the bass. The note readout shows what Knurl tracks; the scope overlays
    the last eight cycles of the output, so the texture is visible cycle by cycle.
 2. Choose a **Pattern**. The pattern sets the level of each cycle and repeats:
@@ -50,13 +54,16 @@ note, so identical notes sound identical, which keeps a riddim line tight.
 
 **Mix** blends with the delayed dry signal; **Output** trims the level.
 
-### Pitch from MIDI
+### Pitch source
 
-For basses whose fundamental is unclear (heavy FM, formant or noise patches),
-select **MIDI** and route the bass's MIDI notes to Knurl. In FL Studio, set the
-bass channel's MIDI output port and Knurl's input port to the same number.
-**Gate** sets the input level that counts as a note in AUDIO mode; **Snap to
-semitone** rounds the detected pitch (turn it off for slides).
+**Pitch from** in the header chooses where the note comes from: **AUDIO**
+detects it, **MIDI** follows MIDI notes sent to Knurl, and **NOTE** uses a note
+you set. For heavy FM, formant or noise basses, NOTE with the drop's root is the
+safest choice. Key lock and Follow bends tune the detection. While detection is unsure of the note, Knurl fades its texture out, and the readout shows **?**. See
+[Pitch source](../pitch.md).
+
+**Gate** (ADVANCED page) sets the input level that counts as a note in AUDIO
+mode; **Snap to semitone** rounds the detected pitch (turn it off for slides).
 
 ## Timing and limits