(CODUX-226) Translate agent management

[numnx]

🧩 Task: Translate agent management

Automated task PR opened by Code UX for T15.

📋 Summary

Sprint: Sprint 226 · Dashboard internationalization foundation · Task: T15

Establish a dashboard-only English/German internationalization system with persisted locale selection, complete German coverage across every dashboard route and overlay except English documentation bodies, locale-aware formatting, and automated coverage checks while preserving backend contracts and runtime/API-authored messages verbatim.

🤖 Model & Provider

Provider	Codex CLI
Model	gpt-5.6-sol

⏱️ Timing

Started	2026-07-14 03:05:51 UTC
Finished	2026-07-14 03:17:10 UTC
Duration	11m 19s

📊 Token Usage

Metric	Value
Input tokens	1,035,905
Cached input tokens	43,067,904
Output tokens	103,880
Total tokens	44,207,689
Invocations	4
Tool calls	292
Active time	1h 12m 31s

Included usage estimate (subscription/local login): $29.83

✅ QA Review

⏳ QA review runs after this PR is opened. Check the task card in the dashboard for the outcome once it lands.

📝 Full Task Prompt

## Objective
Internationalize all Agents route surfaces without translating or changing agent-authored instructions, memory templates, files, or provider output.

## Scope
- Create `dashboard/src/v2/i18n/messages/agents.ts`
- Edit `dashboard/src/v2/AgentsPage.tsx`
- Edit all files under `dashboard/src/v2/components/agents/`
- Edit dashboard presentation helpers `agent-avatar.ts`, `agent-avatar-logo.ts`, `agent-mcp-display.ts`, `agent-scene-tools.ts`, `instruction-file-display.ts`, and `agent-response-effects.ts`
- Edit agent-related fallback presentation in `use-update-status.ts` where applicable
- Update agent page, preset editor/detail, avatar, instruction file, memory, MCP, push, storage, and accessibility tests

## Implementation Requirements
1. Translate page headers, roster/search controls, preset detail/editor fields, validation, avatar customization, instruction-file workflows, memory and MCP dialogs, base-update notices, push/sync feedback, empty/loading/error states, and accessible labels.
2. Use locale-aware dates, numbers, character/token counts, and pluralization while preserving limits, validation thresholds, and sort stability.
3. Keep agent/preset names, labels, system instructions, memory templates, Markdown files, MCP tool/server names, storage names, provider/model names, repository output, invocation messages, and API errors verbatim.
4. Test German creation/edit/delete, unsaved changes, validation, file import/export, push failure/recovery, base update, avatar keyboard controls, memory/MCP configuration, focus restoration, and long/mobile layouts.

## Constraints
- Do not translate content submitted to or generated by agents.
- Do not change agent APIs, Markdown synchronization, provider invocations, repository operations, avatar configuration values, or persistence behavior.
- Do not edit Settings agent panels owned by T07.

## Verification
- Run focused Agents page, preset editor/detail, avatar, instruction file, MCP, memory, push, and storage tests.
- Run `pnpm run lint`.
- Run `pnpm run test:dashboard`.
- Run `pnpm run build`.
- Success means agent-management chrome is German while all agent content and execution/repository data remains unchanged.

🌿 Branch Info

Base: feature/CODUX-226-dashboard-internationalization-foundation
Head: task/feature-codux-22-t15-codex-a4665b02-mrjwhq00

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🤖 Generated by Code UX