Clean release snapshot

resources/entitlements.mac.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.cs.allow-jit</key>
+    <true/>
+    <key>com.apple.security.cs.allow-unsigned-executable-memory</key>
+    <true/>
+    <key>com.apple.security.cs.disable-library-validation</key>
+    <true/>
+    <key>com.apple.security.device.audio-input</key>
+    <true/>
+    <key>com.apple.security.cs.allow-dyld-environment-variables</key>
+    <true/>
+</dict>
+</plist>

resources/models/README.md

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+# Bundled ML models
+
+## basic_pitch.onnx — Spotify Basic Pitch (polyphonic note detection)
+
+The note model used by `MlNoteDetector` (`src/audio/MlNoteDetector.cpp`) for
+TST-style polyphonic note detection.
+
+- **Source:** the `basic-pitch` PyPI package, v0.4.0 —
+  `basic_pitch/saved_models/icassp_2022/nmp.onnx`, copied here verbatim.
+- **Upstream:** Spotify Basic Pitch — https://github.com/spotify/basic-pitch
+- **License:** Apache-2.0 (see the upstream `LICENSE`).
+- **SHA-256:** `2c3c1d144bfa61ad236e92e169c13535c880469a12a047d4e73451f2c059a0ec`
+- **I/O contract:** input `[batch, 43844, 1]` float32 (~2 s mono @ 22050 Hz);
+  outputs onset / note / contour posteriorgrams. See
+  `tests/spike/README.md` for the verified contract.
+
+Bundled into the packaged app via `electron-builder`'s `extraResources`
+(Constitution IV — offline first-run). When the file is absent the engine
+falls back to the YIN `PitchDetector` / `ChordScorer` (Constitution VII).

resources/soundfonts/LICENSE

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+GeneralUser GS soundfont — Licence and Attribution
+====================================================
+
+The bundled `GeneralUser-GS.sf2` file is GeneralUser GS, created and
+maintained by S. Christian Collins.
+
+Source:   https://www.schristiancollins.com/generaluser
+Packaging source (used by our build): https://github.com/mrbumpy409/GeneralUser-GS
+
+GeneralUser GS Licence agreement (verbatim, as published by the author):
+
+    Licence Agreement for the GeneralUser GS SoundFont (by S. Christian
+    Collins):
+
+    GeneralUser GS is a free GM-compatible SoundFont that may be used
+    with any musical software, with the following caveats:
+
+    1. You may distribute GeneralUser GS, either freely or as part of a
+       commercial product, provided that the original distribution package
+       remains intact as provided and is accompanied by this Licence
+       Agreement. GeneralUser GS files may be repackaged provided that
+       proper credit is given to the original author.
+
+    2. You may include GeneralUser GS with commercial software at no
+       additional cost, provided that the software is not itself a
+       collection or library of SoundFonts, and provided that proper
+       attribution and this Licence Agreement are included.
+
+    3. You may not sell GeneralUser GS as a stand-alone product or as
+       part of a SoundFont collection.
+
+    The author, S. Christian Collins, disclaims all warranties regarding
+    GeneralUser GS. In no event shall the author be liable for any damages
+    arising from the use of this SoundFont.
+
+Notes on this bundle
+--------------------
+
+- Slopsmith ships an unmodified copy of `GeneralUser-GS.sf2` pinned to
+  a specific commit SHA of the upstream repo for reproducibility.
+- Attribution: GeneralUser GS by S. Christian Collins
+  (https://www.schristiancollins.com/).
+- This licence file accompanies the soundfont as required by clause 1.