[Automated][tcgc][skip chg] docs(tcgc): document response replacements and file defaults

[github-actions]

Caution

Protected files were modified in this change.
This pull request is in request_review mode and requires explicit human scrutiny before merge.

Protected files: .chronus/changes/tcgc-response-and-file-spector-2026-08-27.md

Update TCGC documentation for typed decorator option inheritance, response replacement helpers, and default file upload content types. Add Spector scenarios for wire-preserving void/bytes response replacements and application/octet-stream file uploads, regenerate the spec summary, record durable updater knowledge, and advance incremental metadata.\n\nThe Azure HTTP specs package receives a patch changeset.

Generated by Documentation Update Agent · gpt56 · 446.5 AIC · ⌖ 42.2 AIC · ⊞ 25.2K · ◷

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Note

This was originally intended as a pull request, but the git push operation failed.

Original error: ERR_VALIDATION: pushSignedCommits: refusing unsigned push for branch 'docs/tcgc-incremental-update-20260907-b0e670c7e6b48a22': Signed-commit payload violates file-protection policy (request_review): .chronus/changes/tcgc-response-and-file-spector-2026-08-27.md

Workflow Run: View run details and download bundle artifact

The bundle file is available in the agent artifact in the workflow run linked above.

To create a pull request with the changes:

# Download the artifact from the workflow run
gh run download 34104708292 -n agent -D /tmp/agent-34104708292

# Fetch the bundle into a temporary ref, then update the local branch
git fetch /tmp/agent-34104708292/aw-docs-tcgc-incremental-update-20260907.bundle refs/heads/docs/tcgc-incremental-update-20260907:refs/bundles/create-pr-docs-tcgc-incremental-update-20260907-b0e670c7e6b48a22-6bb4089f
git update-ref refs/heads/docs/tcgc-incremental-update-20260907-b0e670c7e6b48a22 refs/bundles/create-pr-docs-tcgc-incremental-update-20260907-b0e670c7e6b48a22-6bb4089f
git checkout docs/tcgc-incremental-update-20260907-b0e670c7e6b48a22
# Ensure the working tree matches the updated branch
git reset --hard
# Remove the temporary bundle ref
git update-ref -d refs/bundles/create-pr-docs-tcgc-incremental-update-20260907-b0e670c7e6b48a22-6bb4089f

# Push the branch to origin
git push origin docs/tcgc-incremental-update-20260907-b0e670c7e6b48a22

# Create the pull request
gh pr create --title '[Automated][tcgc][skip chg] docs(tcgc): document response replacements and file defaults' --base main --head docs/tcgc-incremental-update-20260907-b0e670c7e6b48a22 --repo Azure/typespec-azure