[runshouse]

Why

The generated Face Detection generate() examples omit a comma before the SDK-only workflow parameters, so the published Python snippet is invalid.

What changed

• make the docs generator add a missing trailing comma before appending workflow parameters
• preserve calls that already end in a comma
• repair the current sync and async Face Detection examples
• no tests, packages, dependencies, screenshots, or generated artifacts added

Validation

• existing full test suite: 163 passed
• mypy magic_hour
• compiled the changed generator
• parsed every Python example in the corrected Face Detection README
• git diff --check