Resolve 29 open verification issues across all platforms

[snapsynapse]

Data changes:

• gemini.md: Pricing rebrand — Google One AI Premium → Google AI Pro ($19.99/mo); added Google AI Plus ($7.99/mo) and Google AI Ultra ($249.99/mo)
• gemini.md: Nano Banana Pro gating free→paid; Nano Banana 2 now default for free users (Feb 26, 2026); Nano Banana Pro requires AI Pro subscription
• gemini.md: Deep Research gating paid→free; free tier now gets ~5 reports/month via Gemini Flash
• gemini.md: Extensions broken URL fixed (?hl=en removed)
• gemini.md: Gemini Advanced — updated talking point for new pricing tiers; AI Plus row added to availability table
• claude.md: Connectors broken URL fixed (support.claude.com → support.anthropic.com)
• chatgpt.md: Agent Mode regional updated — EEA now available for basic agent tasks (rolled out late July 2025); Connector features still restricted in EEA/CH/UK

No-data-change verification (Checked dates bumped to 2026-03-04): Closes #178 (Claude - Artifacts)
Closes #179 (Grok - Grok Studio)
Closes #180 (Grok - Grok Voice Mode)
Closes #181 (Grok - Real-time X/Twitter Data)
Closes #182 (ChatGPT - Agent Mode)
Closes #183 (ChatGPT - Codex)
Closes #184 (ChatGPT - DALL-E Image Generation)
Closes #185 (ChatGPT - Memory)
Closes #186 (ChatGPT - Sora)
Closes #187 (Claude - Cowork Mode)
Closes #188 (Claude - Projects)
Closes #189 (Claude - Skills)
Closes #190 (Claude - Vision)
Closes #191 (Copilot - Copilot Voice)
Closes #192 (Gemini - AI Studio)
Closes #193 (Gemini - Audio Overview)
Closes #194 (Gemini - Deep Research)
Closes #195 (Gemini - Extensions)
Closes #196 (Gemini - Gemini Advanced)
Closes #197 (Gemini - Gemini Live)
Closes #198 (Gemini - Nano Banana Pro)
Closes #199 (Gemini - NotebookLM)
Closes #200 (Gemini - Project Astra)
Closes #201 (Gemini - Veo)
Closes #202 (Grok - DeepSearch)
Closes #203 (Grok - Grok Chat)
Closes #204 (Grok - Grok Image Generation)
Closes #205 (Grok - Grok Imagine)
Closes #206 (Broken links - Claude Connectors + Gemini Extensions)

https://claude.ai/code/session_01M5CpNaq2LwmTKDmB1tS49x

Description

Type of Change

• Update existing feature information
• Add new feature to existing platform
• Add new platform
• Fix error/typo
• Other (describe below)

Source

Source URL:

Checklist

• I've followed the format in data/_schema.md
• I've updated the last_verified date in frontmatter
• I've included a source link
• I've run node scripts/build.js and verified the output
• The talking point is presenter-ready (clear, accurate, includes key details)

Additional Context