feat(mobile): show agent context usage

[iscekic]

Summary

• show context-window pressure and session cost in agent chat headers
• add a native context details sheet with exact usage, remaining capacity, runtime model, and provider
• resolve context capacity for both Cloud Agent Gateway models and live/read-only remote CLI catalogs

Test plan

• cd apps/mobile && pnpm format && pnpm typecheck && pnpm lint && pnpm check:unused && pnpm test && pnpm format:check
• cd apps/web && pnpm lint
• git diff --check
• iOS E2E: remote CLI header and detail sheet (30,033 / 1,050,000, 3%)
• iOS E2E: Cloud Agent header and detail sheet (50,000 / 1,000,000, 5%)
• verified local session-ingest web and CLI WebSockets return 101 Switching Protocols

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (9 files)

• apps/mobile/src/components/agents/context-sheet-mount-state.test.ts
• apps/mobile/src/components/agents/context-usage-display.test.ts
• apps/mobile/src/components/agents/context-usage-display.ts
• apps/mobile/src/components/agents/session-context-sheet.tsx
• apps/mobile/src/components/agents/session-detail-content.tsx
• apps/mobile/src/lib/hooks/use-session-model-options.ts
• apps/mobile/src/lib/session-context-info.test.ts
• apps/mobile/src/lib/session-context-info.ts
• apps/mobile/src/lib/use-session-model-options.test.ts

Previous Review Summary (commit 76ef3d3)

Current summary above is authoritative. Previous snapshots are kept for context only.

Previous review (commit 76ef3d3)

Status: 4 Issues Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	0
WARNING	4
SUGGESTION	0

Issue Details (click to expand)

WARNING

File	Line	Issue
apps/mobile/src/lib/hooks/use-session-model-options.ts	272	Gateway models lose the Recommended/All picker grouping
apps/mobile/src/lib/hooks/use-session-model-options.ts	273	Existing Gateway favorites no longer match their persisted IDs
apps/mobile/src/components/agents/session-detail-content.tsx	179	Context sheet can reopen automatically after a session switch
apps/mobile/src/components/agents/session-context-sheet.tsx	69	VoiceOver cannot read the primary context status

Files Reviewed (13 files)

• apps/mobile/src/components/agents/context-usage-display.test.ts - 0 issues
• apps/mobile/src/components/agents/context-usage-display.ts - 0 issues
• apps/mobile/src/components/agents/context-usage-ring.tsx - 0 issues
• apps/mobile/src/components/agents/session-context-metrics.tsx - 0 issues
• apps/mobile/src/components/agents/session-context-sheet.tsx - 1 issue
• apps/mobile/src/components/agents/session-detail-content.tsx - 1 issue
• apps/mobile/src/lib/hooks/use-available-models.ts - 0 issues
• apps/mobile/src/lib/hooks/use-session-model-options.ts - 2 issues
• apps/mobile/src/lib/session-context-info.test.ts - 0 issues
• apps/mobile/src/lib/session-context-info.ts - 0 issues
• apps/mobile/src/lib/use-session-model-options.test.ts - 0 issues
• apps/mobile/vitest.config.ts - 0 issues
• apps/web/src/lib/cloud-agent-sdk/index.ts - 0 issues

Fix these issues in Kilo Cloud

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_{Reviewed by gpt-5.6-sol · Input: 100.2K · Output: 10.9K · Cached: 864.9K}

_{Review guidance: REVIEW.md from base branch main}