feat(model-selector): tier categories, shortlist management, and rich cost details

[viktormarinho]

Summary

• Tier system: models grouped into Smarter / Faster / Cheaper based on provider prefix patterns; browse mode renders grouped sections
• Shortlist management: per-connection model shortlist persisted in localStorage; manage mode lets users toggle models on/off; defaults to a curated shortlist when none saved
• Rich details panel: cost percentile badges (Budget / Premium / Top 5% etc.), context/output size labels (Small / Medium / Large / XL), costs color-coded relative to the full model catalog
• Dialog instead of Popover: fixed-size layout that doesn't reflow when switching to manage mode
• Auto-selector: ModelAutoSelector now prefers Claude Opus → Sonnet over picking the first available model
• formatCollectionName: special-cases "LLM" → "Models" for display

Test plan

• Open model selector — models appear grouped by tier
• Search filters within the shortlist only
• "Manage models" toggles individual models; shortlist persists on reload
• Details panel shows cost badges and size labels
• No model connection → selector hidden (unchanged)
• Mobile layout (single column, no details panel)

Split from #2528

🤖 Generated with Claude Code

---

Summary by cubic

Introduces a tiered model selector with per-connection shortlists and richer cost details to make choosing models faster and clearer. Moves the selector to a fixed-size dialog and improves the default auto-selection.

• New Features

  • Tier grouping: models classified into Smarter / Faster / Cheaper; browse mode shows grouped sections.
  • Shortlist management: per-connection shortlist saved in localStorage; manage mode with checkboxes and a curated default; search filters within shortlist in browse mode.
  • Details panel: input/output costs per 1M with percentile badges (Budget/Premium/Top 5%), context/output size labels (Small–XL), and color-coded costs.

• Refactors

  • Switched from Popover to Dialog for a stable, fixed-size layout.
  • Auto-selector now prefers Claude Opus 4.6 → Sonnet 4.6 → Sonnet before falling back.
  • formatCollectionName special-case: “LLM” → “Models”.

^{Written for commit 4a06b4c. Summary will update on new commits.}

[github-actions]

🧪 Benchmark

Should we run the Virtual MCP strategy benchmark for this PR?

React with 👍 to run the benchmark.

Reaction	Action
👍	Run quick benchmark (10 & 128 tools)

Benchmark will run on the next push after you react.

[github-actions]

Release Options

Should a new version be published when this PR is merged?

React with an emoji to vote on the release type:

Reaction	Type	Next Version
👍	Prerelease	2.123.5-alpha.1
🎉	Patch	2.123.5
❤️	Minor	2.124.0
🚀	Major	3.0.0

Current version: 2.123.4

Deployment

• Deploy to production (triggers ArgoCD sync after Docker image is published)

[cubic-dev-ai]

No issues found across 3 files