chore: release v0.8.160

[xuanruli]

Prepares HyperFrames 0.8.160 from main c694785df, including #5602's audio analysis command and timeline mediaStart needed by Desktop transcript/audio alignment. The current notes cover the six user-facing changes already merged since v0.8.159. The final release scope is expanded below and is waiting for two owner-managed PRs. Updates all 14 package versions and five plugin/extension manifests. No functional source changes in this PR.

Validation

• Normal bun run release:prepare 0.8.160 review checkpoint and commit hooks passed; no bypass flags.
• Full bun run build passed.
• bun run test:scripts passed after build (the initial pre-build attempt lacked workspace outputs).
• Focused CLI audio analysis/provider/in-point tests: 30 passed.
• Built CLI audio --help reports v0.8.160; release-channel validation, changed-file lint/format and version consistency passed.
• Signed remote commit tree equals the prepared and validated local tree.

These are local build/module/fixture checks on macOS, not native Windows, live Desktop/provider acceptance, or a published-package test. Generated producer fixture output directories are excluded only from this isolated checkout to avoid existing LFS checkout churn; no such files are changed in the PR.

No visible change

This PR only changes version metadata and release notes. Studio/player source behavior is unchanged by this diff, so before/after UI captures are not applicable.

Publication boundary

This request is to open the release PR only. The release branch was pushed; the local tag was not pushed. No npm publish, release merge, or deployment was performed. Merging this PR triggers the repository's stable publish workflow and needs separate authorization. Desktop #3968 remains held until the version is actually published and a separate Desktop pin bump lands.

Expanded release scope — October 14, America/Los_Angeles

Hold this release until all requested user-authored changes are merged and integrated. Inclusion below is checked against release head 9752507d13da1d185eabeef3645c4c21e48c0c5b and npm 0.8.159 gitHead f35b05fba0e8562b44a1edcf46ac2c1b79c1bca7.

• feat(cli): hyperframes audio measures where sounds land, in film time #5602 — audio analysis in film time: merged and included in this release head; absent from prior npm 0.8.159.
• fix(core): faint SVG grain is not a click target, and a page reset is not an element's CSS #5628 — SVG grain picking and inspected CSS fixes: merged and included; absent from prior npm 0.8.159.
• fix(cli): report spend usage for Claude plans without rate windows #5629 — Claude spend usage without rate windows: merged and included; absent from prior npm 0.8.159.
• feat(cli): audio answers beats, downbeats, bpm, sections and describe through a provider ladder #5632 — audio provider ladder for beats/downbeats/BPM/sections/describe: OPEN, not included. Its owner must complete reviews/CI and merge normally.
• feat(cli): beats tracks the music with the TypeScript beat tracker, without Chrome #5634 — TypeScript music beat tracker without Chrome: OPEN, not included. Its owner must complete reviews/CI and merge normally.
• Date-boundary check fix(inspector): grep timeline windows, continuation, candidates and timeline text from the Canary dogfood #5595 — inspector timeline fixes: opened October 13 at 23:05 PDT; already included in both npm 0.8.159 and this release head. It is not a new 0.8.160 change.
• After feat(cli): audio answers beats, downbeats, bpm, sections and describe through a provider ladder #5632 and feat(cli): beats tracks the music with the TypeScript beat tracker, without Chrome #5634 merge, integrate latest main into this release branch, refresh both release-note artifacts and verify all version manifests, then rerun release verification and current-head CI/reviews.

Current notes describe only merged content; they do not advertise the two pending features as included. No unapproved branch will be cherry-picked. Their source/worktrees stay with their separate owner. This PR remains open-only: no release merge, tag push, npm publication or deployment is authorized. Opening this release PR does not unblock Desktop #3968's published-version and separate pin requirements.

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[github-actions]

Edit accuracy: accurate 271 (base branch 271), smooth 181 of those

The gate passes.
Smoothness is reported in the artifact, not gated. A case fails only if it fails 2 of 3 runs.

Quarantined, measured but not gated (0)

[miguel-heygen]

Version bump and changelog for v0.8.160; notes match the merged PRs, CI green.