feat(readme): compact community contributions widget with per-user search links

[Copilot]

Replaces the verbose <details>-wrapped bullet list (every issue number per user) with a compact paragraph of [@alias (N)](url) links — one per source line for clean diffs.

Changes

• README.md — community section regenerated in new format
• daily-community-attribution.md
  • Pre-step jq now emits [@alias (count)](search-url) using $GITHUB_REPOSITORY for portability; drops the <details> wrapper
  • Agent prompt instructions (both concise and verbose variants) updated to match

Format diff

-<details>
-<summary>Thank you to the community members whose issue reports were resolved...</summary>
-
-- @alias: #25345 _(direct issue)_, #27473 _(direct issue)_, #34302 _(direct issue)_
-- @alias2: #34302 _(direct issue)_
-</details>
+<sup>Community members whose issues were resolved — updated automatically.</sup>
+
+[@alias (3)](https://github.com/github/gh-aw/issues?q=is%3Aissue+is%3Aclosed+label%3Acommunity+author%3Aalias)
+[@alias2 (1)](...)

Each link targets a pre-filtered closed-issues search (is:closed label:community author:X), making individual contribution history one click away.

[Copilot]

Pull request overview

This PR updates the repository’s “🌍 Community Contributions” section to a compact, link-based format and updates the daily attribution workflow to generate that new format automatically, improving readability and diff stability while preserving discoverability via per-user issue searches.

Changes:

• Regenerates README.md community contributions as one [@user (N)](search-url) link per line instead of a verbose per-issue bullet list inside a <details> block.
• Updates .github/workflows/daily-community-attribution.md to emit the new link format using $GITHUB_REPOSITORY for portable repo URLs, and updates agent instructions accordingly.
• Updates the compiled workflow output in .github/workflows/daily-community-attribution.lock.yml to match the new generator behavior.

Show a summary per file

File	Description
README.md	Replaces the prior <details> + per-issue bullets with compact per-author search links.
.github/workflows/daily-community-attribution.md	Changes the pre-step generator and agent prompt guidance to produce the new link-based section.
.github/workflows/daily-community-attribution.lock.yml	Regenerated compiled workflow content consistent with the updated markdown workflow.

Review details

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• Files reviewed: 3/3 changed files
• Comments generated: 1
• Review effort level: Low