chore(release): 0.77.0 — inProcessSandboxClient + worker completion-transport seam

[drewstone]

Publishes the substrate exports merged in #379 and #380, which are unpublished as of 0.76.0.

What

• Bump version 0.76.0 → 0.77.0 (npm-only package; no Python trio).
• Refresh the generated docs/api/primitive-catalog.md version stamp (pnpm run docs:api).
• Bump the **Version** header in docs/canonical-api.md to keep the freshness gate green.

Why

• feat(loops): inProcessSandboxClient — typed in-process box, no more SandboxInstance casts #379 inProcessSandboxClient (typed in-process box) and feat(loops): injectable completion transport on the worker seam — offline without a mock server #380 (injectable completion transport on the worker seam) are merged on main but the published version is still 0.76.0.
• A downstream package (agent-knowledge) needs to consume these new exports.

Verification

• pnpm run docs:check green (version pin present + accurate, 3 substrate peers accurate).
• Catalog regen produces only the version-stamp delta; inProcessSandboxClient is present in the catalog, no spurious symbols.
• Branch merges cleanly into origin/main.

[tangletools]

✅ Auto-approved PR — 3aeac6c3

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_{tangletools · auto-approval · reason: blanket_auto_approve · 2026-06-24T19:09:48Z}