[appdevelopsk]

Acquisition hypothesis

Dotchi (A/B poll game) is missing from the current public quick-games guide and the catalog's Quick games filter. In the latest available matched Play listing window, Dotchi received 898 visits / 34 acquisitions (~3.8%), so improving qualified paths to its Play listing is an evidence-based experiment, not a promised lift.

Changes

• Add an accurate, distinct Dotchi A-or-B poll entry to the quick-games guide, including an existing guide_store_click event, Play Store package and encoded install referrer; no user or vote data in URLs.
• Include the publicly cataloged twotaku slug in the quick-games purpose filter.
• Update JSON-LD ItemList from 4 to 5 ordered entries and sitemap lastmod for this guide.
• Add source-contract regression assertions, a truthfulness/URL test, and read-only live smoke gates after site publishing.

Explicit gates

• Source and CI do not publish to appdevelopsk.com's VPS. Operator-owned targeted deploy (already documented in scripts/publish_app_discovery.sh), followed by the read-only scripts/check_app_discovery_live.sh must pass.
• Measure GA4 guide_store_click with {guide:'quick-games', app:'twotaku'} and actual Play listing visitors/acquisitions by period. Clicks are not installs, and user acquisition should not be claimed until comparable time windows and attribution exist.
• This PR makes no Android/iOS binary or Play listing changes.