Caffold v0.12.0

What's Changed

• Separate the Codex and Grok HTTP MCP addresses by @panarch in #314
• Match Codex usage to the Claude and Grok format by @panarch in #315
• Fix the composer showing a model and permission mode it does not send by @panarch in #316
• Add PDF preview to Integrated Review by @panarch in #318
• Fix Codex usage dropping every limit but one by @panarch in #319
• Show Task list status and worktree context sooner by @panarch in #320
• Unify split pane resizers and remember their widths by @panarch in #321

Full Changelog: v0.11.0...v0.12.0