Remove AMYboard patch-file support

[bwhitman]

Patch files (.patch wire-command dumps saved/loaded on device) are no longer used, so this removes the whole feature — and bumps the amy pin to latest main so the amy#858 changes can be tested together with it.

What's removed

• tulip/shared/amyboard-py/amyboard.py: load_patch_file(), save_patch_file(), and the PatchSelector class + patch_selector() rotary-encoder app (~190 lines). save_patch_file() was the last caller of amy.get_synth_commands() in tulipcc, so this also resolves the compatibility question from amy #858 — the remaining yield_synth_commands consumers (modtulip.c wrapper, web-editor knob sync) use the unchanged C API and already parse the new iv/in/y wirecodes via AMY_KW_MAP.
• tulip/amyboardweb/static/spss.js: dead num_oscs_from_patch_file_content() and write_channel_dirty_patch_file() helpers (no callers), plus stale comments referencing the long-removed restore_patch_state_from_files.
• tulip/server/amyboardworld_db_api.py: patch_selector/PatchSelector dropped from the display/encoder hardware-tag regexes; matching check removed from test_hardware_tags.py.
• docs/amyboard/accessories.md: patch_selector() mention and example.

Left alone: migrate_amyboard_sketches.py (one-time ops script for converting legacy World uploads) and the upload endpoint, which already rejects .patch files.

AMY pin bump

amy is pinned to 315d9a5 (1.2.45), which includes the amy#858 bus / get_synth_commands() output changes. Verified 315d9a5 contains the #858 merge commit. tulip/server/refdocs/amy/ re-synced via sync_amy_docs.py — doc content unchanged, only the _VENDORED_FROM.txt stamp moved.

Testing

• python3 -m py_compile on all touched Python files
• node --check on spss.js
• tulip/server/test_hardware_tags.py passes ("all ok")
• Repo-wide sweep confirms no remaining patch-file references (leftover .patch hits are unrelated: editor CSS classes, AMY patch numbers, HTTP @app.patch)
• PR preview + HW CI will build with the new pin for end-to-end testing before merge

🤖 Generated with Claude Code

[github-actions]

🔌 AMYboard PR preview

Editor + flasher: https://amyboard-pr-1128.vercel.app/editor/

This preview bundles this PR's firmware — its flasher only flashes this build (not the release). Rebuilt on every push; removed when the PR closes.

The hardware CI has been kicked off and should return within a few minutes, stand by!

[github-actions]

🌷 Tulip Web PR preview

Tulip Web: https://tulip-pr-1128.vercel.app/run/

Flash a Tulip to this build: on-device run tulip.upgrade(pr=1128).

Rebuilt on every push; removed when the PR closes.

[github-actions]

🎛️ HW CI (physical bench)

AMYboard (USB-MIDI + AMY zP → audio; built-in tones + AMYboard World sketches acid/house/woodpiano over the SysEx control API): ✅ PASS — flashed this PR’s firmware; all checks matched the references.

Tulip (TULIP4_R11; serial-REPL audio + WiFi screenshot): ✅ PASS — flashed this PR’s firmware; all checks matched the references.

⬇️ Artifacts: recordings · screenshot · serial logs · run logs

_{Self-hosted bench. Audio spectral-compared to ref/hwci_basic.wav, the AMYboard World sketch refs (ref/{acid_generator,house_generator,woodpiano}.wav) + ref/tulip_basic.wav; Tulip screenshot pixel-compared to ref/tulip_screenshot.png. Both analog outs share one capture card, so the tests run sequentially.}