Foundation: time, audio-io, midi, dsp, model, mix, engine, playback crates

Workspace for SoundCraft, a clean-room pure-Rust Pro Tools-class DAW:
timebases and tempo maps, WAV/AIFF/FLAC/symphonia audio IO with peaks,
SMF and MIDI ops, 26 original DSP plugins, the session model, the mix
engine, ~180 registered commands with undo, a cpal player, and the
agent rules (AGENTS.md, ATTRIBUTION.md).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/brand/LICENSE-brand.txt

@@ -0,0 +1,42 @@
+ArtCraft brand assets: license
+
+The ArtCraft name, wordmark and mark (the "ArtCraft Marks"), including every file in this
+directory in every color, size and format, are owned by the ArtCraft Team. They are trademarks
+and are NOT open source. They are not covered by SoundCraft's MIT OR Apache-2.0 license, and nothing in
+that license, in NOTICE or in any other file of this repository grants any right to them.
+
+Permission
+
+The ArtCraft Team grants a limited, non-exclusive, non-transferable, revocable, royalty-free
+permission to use the ArtCraft Marks only:
+
+  1. as part of copies of this repository; and
+  2. within SoundCraft itself, its documentation and its official builds, to identify SoundCraft as made
+     by the ArtCraft team and community and to link to getartcraft.com and its community.
+
+Conditions
+
+The permission holds only while every one of these is true:
+
+  - The marks are used exactly as supplied in this directory. Do not redraw, recolor, crop,
+    stretch, rotate, animate, outline or add effects to them, extract parts of them, or combine
+    them with any other name, mark or artwork.
+  - They are used only in the context of SoundCraft, and only to say that the ArtCraft team makes it.
+    They must never suggest that the ArtCraft Team made, sponsors, endorses, certifies or supports
+    any other product, service, fork, modified version, plug-in, organization or person.
+  - Neither the marks nor the ArtCraft name appear in the name, logo, icon, domain, social media
+    handle, app-store listing, advertising or marketing of anything other than SoundCraft.
+
+Forks and modified versions
+
+If you distribute or publish a modified version of SoundCraft, or any work derived from it, you must
+remove the ArtCraft Marks from it (or replace them with your own) and must not call it ArtCraft or
+present it as an ArtCraft product. You may say, in plain text, that your work is based on SoundCraft by
+the ArtCraft team. A fork kept only to propose changes back to this repository may keep the marks
+unchanged.
+
+Everything else
+
+Any use not expressly permitted here needs prior written permission from the ArtCraft Team
+(https://getartcraft.com/). The permission ends automatically for anyone who breaks these terms.
+All other rights are reserved.