feat(upsert-post): add post_author parameter for create path

[chubes4]

Summary

Adds post_author support to the datamachine/upsert-post ability.

Why

The events extension (data-machine-events) delegates event creation to datamachine/upsert-post but needs to preserve the submitter attribution for user-submitted events. Without post_author, the extension would have to do a second wp_update_post call after every create, defeating the purpose of delegating to the generic primitive.

Changes

• Input schema: added post_author (integer, optional)
• Chat tool params: added post_author
• Execute: reads post_author, applies only on create path (ignored on update, matching wp_insert_post semantics)

Consumer

• refactor(EventUpsert): delegate to DM core upsert-post ability data-machine-events#209

[homeboy-ci]

Homeboy Results — data-machine

Audit

⚡ Scope: changed files only

✅ audit (changed files only)

• Alignment score: 0.803
• Outliers in current run: 45
• Drift increased: no
• Severity counts: unknown: 45, warning: 2
• Top actionable findings:
  1. inc/Abilities/Content/UpsertPostAbility.php — unused_parameter — Unused parameter 'tool_def' in function 'handleChatToolCall' (no callers found)
  2. inc/Abilities/Content/UpsertPostAbility.php — missing_test_file — No test file found (expected 'tests/Unit/Abilities/Content/UpsertPostAbilityTest.php')
  3. inc/Abilities/PermissionHelper.php — outlier — (outlier)
  4. inc/Abilities/AbilityCategories.php — outlier — (outlier)
  5. inc/Abilities/Analytics/PageSpeedAbilities.php — outlier — (outlier)
  6. inc/Api/Tools.php — outlier — (outlier)
  7. inc/Api/Execute.php — outlier — (outlier)
  8. inc/Api/Providers.php — outlier — (outlier)
  9. inc/Api/StepTypes.php — outlier — (outlier)
  10. inc/Api/Handlers.php — outlier — (outlier)

Audit findings (10 shown)

1. **inc/Abilities/Content/UpsertPostAbility.php** — unused_parameter — Unused parameter 'tool_def' in function 'handleChatToolCall' (no callers found)
2. **inc/Abilities/Content/UpsertPostAbility.php** — missing_test_file — No test file found (expected 'tests/Unit/Abilities/Content/UpsertPostAbilityTest.php')
3. **inc/Abilities/PermissionHelper.php** — outlier — (outlier)
4. **inc/Abilities/AbilityCategories.php** — outlier — (outlier)
5. **inc/Abilities/Analytics/PageSpeedAbilities.php** — outlier — (outlier)
6. **inc/Api/Tools.php** — outlier — (outlier)
7. **inc/Api/Execute.php** — outlier — (outlier)
8. **inc/Api/Providers.php** — outlier — (outlier)
9. **inc/Api/StepTypes.php** — outlier — (outlier)
10. **inc/Api/Handlers.php** — outlier — (outlier)

Tooling versions

• Homeboy CLI: homeboy 0.89.1+114208cc
• Extension: wordpress from https://github.com/Extra-Chill/homeboy-extensions
• Extension revision: unknown
• Action: Extra-Chill/homeboy-action@v2

---

Homeboy Action v1