Convert trajectory grader workflow to feature grower (all-you-can-eat) pattern

[Copilot]

Updates the Trajectory Grader Implementer workflow to run as a Feature Grower using the All-You-Can-Eat pattern, increasing schedule frequency to every 30 minutes while maintaining open PR backpressure gating.

Key Changes

• Workflow schedule & backpressure: Changed on.schedule from daily to every 30 minutes and normalized skip-if-match to 'is:pr is:open in:title "[trajectory-grader]"'.
• Workflow description: Updated frontmatter description in .github/workflows/daily-trajectory-grader-implementer.md to document feature grower (all-you-can-eat) semantics.
• Compiled lockfile: Recompiled .github/workflows/daily-trajectory-grader-implementer.lock.yml to reflect schedule cron (27/30 * * * *) and skip query updates.

Configuration Snippet

description: >
  Feature grower (all-you-can-eat) workflow that implements exactly one grader
  per run from the ranked graders catalog (shared/graders/README.md) as a new,
  self-contained shared agentic workflow component, and opens a draft PR with the addition.
on:
  schedule: every 30 minutes
  workflow_dispatch:
  skip-if-match: 'is:pr is:open in:title "[trajectory-grader]"'

[Copilot]

🟢 Approval recommended

The source and generated workflow changes are consistent with the documented All You Can Eat pattern.

Pull request overview

Converts the trajectory grader implementer into a frequently scheduled Feature Grower with open-PR backpressure.

Changes:

• Runs every 30 minutes.
• Normalizes the open-PR skip query.
• Regenerates the compiled workflow consistently.

File summaries

File	Description
.github/workflows/daily-trajectory-grader-implementer.md	Updates scheduling, backpressure query, and description.
.github/workflows/daily-trajectory-grader-implementer.lock.yml	Reflects the source changes in generated YAML.

Review details

• Files reviewed: 2/2 changed files
• Comments generated: 0
• Review effort level: Balanced

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[github-actions]

🎉 This pull request is included in a new release.

Release: v0.87.10