v0.18.0

Changelog

• 8bc14a0 Revert "feat: add pre-flight guidance to elevate user prompts to highest priority"
• 45ba54c feat: add pre-flight guidance to elevate user prompts to highest priority
• 6d12f35 feat: mid-loop user guidance with in-flight tool cancellation
• 2e2cdb2 feat: show glass model-switch popover when switching models via Alt+1–4 hotkey
• b43a4a6 release: bump version to v0.18.0 with mid-loop guidance and model-switch popover
• 20230b3 ui: remove base URL preset cards from OpenAI-compatible providers info card
• 1d02edb ui: rename 'Doc Index' to 'Project Index' in sidebars and page header