docs: add Gemini provider references to wiki
Updated Home (markdown)
Updated Installation (markdown)
Updated Prompts (markdown)
Updated Roadmap (markdown)
Updated Providers (markdown)
Updated Quick Start (markdown)
Updated Architecture (markdown)
Updated Data Model (markdown)
docs: make roadmap issue wording durable
docs: update roadmap with execution and assertion fixes
updated pr-agent best practices with auto analysis
Move GEPA to v2.0 in roadmap
Add analytics milestone to roadmap
Expand roadmap with lighter eval and optimization issues
add roadmap and gemini milestone
Restore data model image