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/ballast/CHANGELOG.md

@@ -1,5 +1,13 @@
 # Ballast changelog
 
+## 0.2.0
+
+- **Parts from** defaults to **Grid**, on quarter notes. Switch-ups land on the
+  grid, and the grid needs no note detection. Saved projects keep their choice.
+- In Notes mode, detection holds its notes: a new pitch must hold for 40 ms to
+  start a new part, and a note ends after 20 ms of silence. Growls and wobbles
+  no longer split into many parts.
+
 ## 0.1.0
 
 - Introduce Ballast, a switch-up leveller: every part of a bassline gets one

docs/ballast/README.md

@@ -1,7 +1,7 @@
 # Ballast
 
 Ballast levels every note or switch-up of a bassline to one loudness, with a
-single gain for each. Current version **0.1.0**.
+single gain for each. Current version **0.2.0**.
 
 Riddim and dubstep basslines change patch every few beats. Patches at the same
 peak level still differ in how loud they sound, so each switch-up lands at a
@@ -21,11 +21,15 @@ design. Keep the font license with redistributed packages.
 ## Work with it
 
 1. Choose where a part starts with **Parts from**:
+   - **Grid** (the default): every line of the host's beat grid, from 1 bar to
+     1/16, quarter notes at first. Switch-ups land on the grid, and the grid
+     needs no note detection, so it also catches a patch change on the same
+     note.
    - **Notes**: every note start, detected from the audio, or from MIDI notes
-     sent to the effect (**Notes from**: AUDIO or MIDI).
-   - **Grid**: every line of the host's beat grid, from 1 bar to 1/16. Use it
-     when a switch-up changes the patch on the same note: the note tracker does
-     not see a new note there.
+     sent to the effect (**Notes from**: AUDIO or MIDI). Use it for basslines
+     whose parts start off the grid. A note ends after 20 ms of silence, and a
+     new pitch must hold for 40 ms to start a new part, so growls and wobbles do
+     not split into many parts. See [Pitch source](../pitch.md).
 2. Play the bassline and press **LEARN** just before the switch-up that sits
    right in the mix. Its loudness becomes the **Target**. You can also set
    Target by hand.