Generate Godot send() kwarg map from Python on release

[bwhitman]

Problem

The send() kwarg → wire-code map was hand-duplicated in three places that had to be kept in sync manually:

• amy/__init__.py _KW_MAP_LIST — the source of truth
• godot/amy.gd _KW_MAP
• a verbatim third copy embedded in setup_godot.sh

The Godot copies had silently drifted ~20 entries behind Python — missing bus (the reported gap), plus patch_string, the synth sub-params (pedal, synth_flags, oscs_per_voice, to_synth, grab_midi_notes, note_source, synth_delay), the sample params, midi_cc/midi_note_cmd/cv_trigger, sequencer_run, and the eg0/eg1 aliases — and carried a wrong type for volume (F instead of L).

JS doesn't have this problem: scripts/gen_amy_js_api.py already generates it from _KW_MAP_LIST, and #773 now rebuilds it on release.

Fix

Make Godot generated from the Python source, the same way JS is:

• scripts/gen_amy_gd_api.py (new) rewrites the # BEGIN/END GENERATED region of godot/amy.gd from _KW_MAP_LIST, reusing the JS generator's parser so the two bindings can't disagree. Run via make godot-api.
• release.yml runs make godot-api next to the web rebuild and folds godot/amy.gd into the tagged bump commit — so the released addon (built from godot/ at the tag) always matches the Python API.
• c-cpp.yml gains a godot-api job that fails any PR where godot/amy.gd drifts from _KW_MAP_LIST, and validates the generated GDScript with gdparse (the addon build never parses amy.gd, so nothing else would catch a syntax error).

Also in here

• Ordering fix: message() now sorts keys by _KW_PRIORITY like Python/JS, so patch_string is emitted last — required now that it's in the map, since it consumes to the end of the message.
• De-dup setup_godot.sh: it now cps godot/amy.gd instead of embedding a copy. That third copy had drifted even further (also missing amy.gd's web-configure block), so this removes ~300 lines and a whole class of drift.

Verification

• make godot-api is idempotent; godot/amy.gd now has all 63 params, with bus present and volume corrected to ["V", "L"].
• gdparse godot/amy.gd passes (the lambda + typed loops are valid Godot 4 GDScript).
• bash -n setup_godot.sh and YAML validation of both workflows pass.

Follows #773 (already merged) — both regenerate artifacts into the release bump commit.

🤖 Generated with Claude Code