data: correct Google AI Ultra tiers and Gemini app access (2026-10-10)

[blackkcold]

Verified official changes

• Replace obsolete single Google AI Ultra $249.99 plan with Ultra 5x ($99.99 US/month) and Ultra 20x ($199.99 US/month); add Google AI Plus and Gemini Free for a complete plan comparison. Pricing and multipliers checked against Google subscription page and Google I/O announcement.
• Document the Oct 9 Gemini personal-account model picker/access changes (Free Flash-Lite; AI Plus Flash-Lite + Flash; AI Pro/Ultra all 3). AI Plus transition is per-account email. Explicitly distinguish manual model selection from auto routing and the separate Developer API; the general help article has some differing wording.
• Cite Google's model selection Low/Medium/High information without adding unmeasured API scatter points.
• Update snapshot and README/onsite plan explanation to 2026-10-10.

Intentionally unchanged

No new benchmark data points, capability scores, model recommendations, existing recommended Plan categories, High/XHigh/Max agent adjustments, MIT, CODEOWNERS, CI or Pages settings. Run Static validation before merge.

Sources: https://gemini.google.com/advanced ; https://blog.google/products-and-platforms/products/google-one/google-ai-subscriptions/ ; https://support.google.com/gemini/answer/17004136?hl=en ; https://support.google.com/gemini/answer/18648722?hl=en