Dev Command Center v0.1.22

Release description

 ## Highlights

 Dev Command Center v0.1.22 introduces real account usage information for Codex and Claude while keeping the Composer clean and showing alerts only when user action may be required.

 ## Account Usage

 - Added an “Account usage” section to the existing provider/model menu.
 - Added a detailed usage view under Settings → Providers.
 - Codex reads structured rate-limit windows directly from the app-server.
 - Claude consumes structured rate-limit events from the Agent SDK and updates usage after provider activity.
 - Percentages are always labeled explicitly, such as “20% remaining”.
 - Providers without a reliable structured data source remain hidden from account usage surfaces.

 ## Composer Alerts

 - Yellow warning when 20% or less remains.
 - Red warning when 5% or less remains, or when the limit has been reached.
 - No permanent usage indicator is shown beside Send while account usage is normal.
 - Removed the artificial context estimate based on turn and checkpoint counts.

 ## Interface Improvements

 - Preserved the calmer Composer layout introduced by the recent UI refactor.
 - Replaced the internal “T3-style runtime” reference with the neutral “Isolated runtime” label.
 - Added clear loading, error, and waiting-for-Claude-activity states.

 ## Validation

 - 178 desktop tests passed.
 - TypeScript validation passed.
 - Production desktop build completed successfully.
 - Tauri backend and Rust provider integrations verified.