Audit content handling engagement SDK docs

[trustratch]

Summary

• Rewrote SDK content-handling pages for reactions, mentions, polls, and ads with verified platform surfaces, parameter tables, and CodeGroup snippets.
• Added the four pages to all-platform docs-as-test coverage and updated audit tracker/LLM outputs.
• Fixed docs-as-test extractor gaps for Android import de-duping and shared iOS snippet variables.

Validation

• python3 .docs-ops/ci/check-mdx.py
• git diff --check
• python3 .docs-ops/ci/check-drift.py --base origin/main --skip-fetch --require-doc-as-test all --quiet
  • PASS: TS 243/243, Flutter 173/173, Android 238/238 with 3 skipped, iOS 255/255 with 3 skipped

[mintlify]

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Project	Status	Preview	Updated (UTC)
social-b97141fb	🟢 Ready	View Preview	Jun 21, 2026, 5:53 AM

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[github-actions]

✅ Docs-Ops Gate — MDX validity PASS

checked 4 .mdx files; 0 with problems

⚠️ Drift + doc-as-test SKIPPED — SDK_READONLY_PAT secret is not configured, so the private TS SDK can't be checked out. MDX validity above still gates. Add the secret to enable the full API-accuracy layer (see .docs-ops/CI_GATE.md).