feat: publish av-tools 0.1.0

CHANGELOG.md

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+# Changelog
+
+All notable changes to av-tools are documented here. The project follows
+semantic versioning once a first release is legally publishable.
+
+## 0.1.0 — 2026-07-24
+
+- Scaffold a local-first React/Vite audio and video toolbox application.
+- Integrate Toolbox SDK 0.2.2 for standalone and Toolbox-context operation.
+- Self-host exact ffmpeg.wasm single-thread and multithread core 0.12.10
+  assets; add capability detection and single-thread fallback.
+- Add typed media, project, command-plan and preset foundations for conversion
+  and light sequential editing.
+- Wire the Edit workspace to fast and accurate trim plus compatibility-checked
+  fast concat and preset-backed normalized concat with an explicit
+  missing-audio policy.
+- Add a bounded in-memory application queue for eight scheduled operations,
+  with one FFmpeg execution at a time, progress, cleanup, cancellation and
+  recovery behavior.
+- Bound long-session native heap retention by refreshing the idle
+  ffmpeg.wasm core before its seventeenth media execution, before a fourth
+  contact sheet, and after a bare core abort, without discarding queued work or
+  completed results.
+- Add configurable bounded preview proxies and reuse matching derivatives from
+  the local cache.
+- Add storage, waveform, inspection, timeline, project, result verification
+  and export workflows.
+- Add deterministic generated AV fixtures, deployment examples, security and
+  architecture documentation, deterministic release packaging and a temporary
+  Toolbox Portal assembly smoke.
+- Record a 2026-07-24 local Vitest result of 303 passing tests and one
+  conditional native subtitle-filter skip.
+- Exercise the real pinned ST core in Chromium across a broad conversion,
+  structural-editing, analysis, image, metadata, chapter, subtitle, queue and
+  recovery matrix; verify a real MT H.264/AAC conversion and MT-to-ST fallback.
+- Record a pinned ST/MT Chromium performance baseline for 2-second 160×90 and
+  6-second 640×360 H.264/AAC inputs. This is a one-run workstation baseline,
+  not a universal performance claim.
+- Record the pinned-core runtime inventory: 341 demuxers, 173 muxers, 515
+  decoders, 204 encoders and 465 filters (1,698 entries).
+- Verify the checksums and native probes for all 15 generated CC0 fixtures.
+
+### Release assets
+
+- Identify the exact reviewed GPL-3.0-or-later source with the annotated
+  `v0.1.0` tag.
+- Distribute the reviewed Corresponding Source and third-party notices for the
+  GPL-enabled FFmpeg cores and linked codecs beside the binary. The x264 and
+  LAME branch inputs are pinned to immutable commits in `SOURCE.md`.
+- Browser feature/format claims beyond the recorded Chromium ST matrix and
+  narrow MT H.264/AAC evidence require cross-browser and exhaustive MT runs.
+- Mobile and cross-browser performance is unrecorded; the Chromium workstation
+  baseline needs cold-cache repetitions and statistical ranges.