fix(dispatch): map fix stage to coder role in per-org scaffold

[waynesun09]

Summary

The per-org scaffold dispatch.yml is missing the fix→coder role mapping that reusable-dispatch.yml already has. This causes /fs-fix to be silently skipped on all per-org installations:

Stage 'fix' skipped — role 'fix' not in defaults.roles

Root cause

Commit 709d8af0 correctly added code|fix) STAGE_ROLE="coder" to the scaffold dispatch on main. However, the merge of PR #1022 (c7c57170) resolved a conflict in the case statement using the branch version that lacked the fix mapping, regressing the fix.

The per-repo path (reusable-dispatch.yml:267) was fixed separately in commit 005ac0a1 and survived the merge. Only per-org installations are affected.

Change

One-line fix: add fix to the existing code) case in the stage-to-role mapping at internal/scaffold/fullsend-repo/.github/workflows/dispatch.yml:274:

# Before:
code) STAGE_ROLE="coder" ;;

# After:
code|fix) STAGE_ROLE="coder" ;;

This aligns with the per-repo dispatch and with reusable-fix.yml, which already mints a coder token (role: coder).

Test plan

• Trigger /fs-fix on a per-org repo whose config.yaml has default roles (no fix entry) — dispatch should route to fix stage instead of skipping
• Confirm code, retro, and prioritize stage mappings are unaffected

Superseded by #1611

Note: PR #1611 (ADR 41 — synchronous workflow_call dispatch refactor) includes this same fix as part of a larger architectural change that replaces the entire dispatch mechanism. If #1611 merges first, this PR can be closed as superseded. This PR exists as the minimal surgical fix in case #1611 needs more review time.

Partially addresses #1725
Related: #1186 (closed prematurely — only per-repo path was fixed by #1187)

[github-actions]

Site preview

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Commit: 430cbb5a302d04f153683af5d356e1672beffa81

[fullsend-ai-review]

Review

Findings

Info

• [sub-agent-failure] N/A — The intent-coherence sub-agent did not return findings: model claude-sonnet-4-5@20250929 not available on vertex deployment.
• [sub-agent-failure] N/A — The style-conventions sub-agent did not return findings: model claude-sonnet-4-5@20250929 not available on vertex deployment.

[waynesun09]

This fix is also included in #1611 (ADR 41 — synchronous workflow_call dispatch refactor) at dispatch.yml:237, which rewrites the entire dispatch mechanism and eliminates the thin stage workflow scanning pattern. If #1611 merges first, this PR can be closed as superseded.