* fix(copilot): fallback to copilot-chat on 403 identity denial for standard provider
* fix(copilot): document COPILOT_INTEGRATION_ID, extract identity fallback, add changelog
Adds the missing COPILOT_INTEGRATION_ID entry to .env.example (fixes
tests/unit/issue-7793-env-doc-sync-repro.test.ts), extracts the GitHub
Copilot 403 identity fallback out of open-sse/executors/base.ts into its
own module (open-sse/executors/copilotIdentityFallback.ts) to bring the
file back under the frozen file-size ratchet, and adds a changelog.d/fixes
fragment for the PR.
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
---------
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
Co-authored-by: tuandinh0801 <tuandinh0801@users.noreply.github.com>
