feat: Add workflow_dispatch support and switch to apitools

Add a consolidation step to unify outputs from issue-based and
dispatch-based extract steps, so all downstream steps reference a
single step ID. PR metadata (title, branch name, closes line) is
now derived per trigger type. The failure comment step is skipped
for dispatch triggers where no issue exists.

Switch API endpoint from repo-tools to the refactored apitools
service. Also fixes a ste/ps typo and disables the old
import-openapi-to-oak workflow.

Author: frantuma

.github/workflows/import-openapi-to-oak.yaml

@@ -1,9 +1,6 @@
+# Superseded by import-openapi.yaml
 name: Import OpenAPI Spec to OAK
 
-on:
-  issues:
-    types: [ opened ]
-
 jobs:
   generate-repo-structure:
     # Only run if the issue body contains the trigger string