bcbd2b423b
- Remove Settings Migration, Upgrade Onboarding, and MemoryBank Migration docs (all covered by the migration wizard shipped in #7823) - Remove custom-openai-provider-ui.md (feature shipped) - Update MCP docs: remove connection status and enable/disable toggle (shipped in #7810) - Update settings-ui.md: remove import/export (shipped in #7794) - Update opencode-migration-plan.md accordingly