feat(agent-manager): add Create PR button for worktree sessions

[marius-kilocode]

Summary

• Add "Create PR" button next to existing "Finish worktree" button for worktree sessions
• Button sends instructions to the agent to handle git operations (commit, push, gh pr create)
• Agent proposes clean branch name, commit message, PR title/description and waits for user confirmation before any irreversible action

Test plan

• Start a worktree session and make changes
• Verify PR button appears next to Finish worktree button
• Click PR button → agent analyzes changes and proposes details
• Confirm agent waits for user approval before commit/push
• Verify PR is created with user-confirmed branch name and description
• Test with completed session (button should resume session)
• Test without gh CLI installed (agent should ask user to install)

Screenshots:

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[kiloconnect]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Overview

This PR adds a "Create Pull Request" button to the Agent Manager UI for worktree sessions. The implementation is clean and follows existing patterns.

Key Changes:

• Added createPRTitle translation key to all 24 locale files
• New handleCreatePR function in ChatInput.tsx that sends detailed instructions to the agent
• New showCreatePR and parentBranch props passed from SessionDetail.tsx
• Added parentBranch field to ParallelModeInfo interface in sessions.ts

Implementation Notes:

• The PR button appears for worktree sessions with a branch name (both running and completed sessions)
• The handler correctly differentiates between resuming completed sessions and queuing messages for running sessions
• The instructions template guides the agent through a proper PR workflow with user confirmation steps

Files Reviewed (27 files)

• webview-ui/src/i18n/locales/ar/agentManager.json - Translation added
• webview-ui/src/i18n/locales/ca/agentManager.json - Translation added
• webview-ui/src/i18n/locales/cs/agentManager.json - Translation added
• webview-ui/src/i18n/locales/de/agentManager.json - Translation added
• webview-ui/src/i18n/locales/en/agentManager.json - Translation added
• webview-ui/src/i18n/locales/es/agentManager.json - Translation added
• webview-ui/src/i18n/locales/fr/agentManager.json - Translation added
• webview-ui/src/i18n/locales/hi/agentManager.json - Translation added
• webview-ui/src/i18n/locales/id/agentManager.json - Translation added
• webview-ui/src/i18n/locales/it/agentManager.json - Translation added
• webview-ui/src/i18n/locales/ja/agentManager.json - Translation added
• webview-ui/src/i18n/locales/ko/agentManager.json - Translation added
• webview-ui/src/i18n/locales/nl/agentManager.json - Translation added
• webview-ui/src/i18n/locales/pl/agentManager.json - Translation added
• webview-ui/src/i18n/locales/pt-BR/agentManager.json - Translation added
• webview-ui/src/i18n/locales/ru/agentManager.json - Translation added
• webview-ui/src/i18n/locales/th/agentManager.json - Translation added
• webview-ui/src/i18n/locales/tr/agentManager.json - Translation added
• webview-ui/src/i18n/locales/uk/agentManager.json - Translation added
• webview-ui/src/i18n/locales/vi/agentManager.json - Translation added
• webview-ui/src/i18n/locales/zh-CN/agentManager.json - Translation added
• webview-ui/src/i18n/locales/zh-TW/agentManager.json - Translation added
• webview-ui/src/kilocode/agent-manager/components/ChatInput.tsx - New PR button and handler
• webview-ui/src/kilocode/agent-manager/components/SessionDetail.tsx - Props for PR button visibility
• webview-ui/src/kilocode/agent-manager/state/atoms/sessions.ts - Added parentBranch to interface

[kiloconnect]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Overview

This PR adds a "Create PR" button to the Agent Manager UI for worktree sessions. The implementation is clean and follows existing patterns in the codebase.

Key Changes:

• Added createPRTitle translation key to all 22 locale files
• Added handleCreatePR function in ChatInput.tsx that generates instructions for the agent to create a pull request
• Added showCreatePR and parentBranch props to enable the button for worktree sessions
• Added parentBranch to the ParallelModeInfo interface

Implementation Notes:

• The button correctly appears only for worktree sessions with a branch name
• Handles both running sessions (queues message) and completed sessions (resumes with message)
• Uses the same styling patterns as existing action buttons
• Properly adjusts hint text padding to accommodate the new button

Files Reviewed (25 files)

• webview-ui/src/i18n/locales/ar/agentManager.json - translation added
• webview-ui/src/i18n/locales/ca/agentManager.json - translation added
• webview-ui/src/i18n/locales/cs/agentManager.json - translation added
• webview-ui/src/i18n/locales/de/agentManager.json - translation added
• webview-ui/src/i18n/locales/en/agentManager.json - translation added
• webview-ui/src/i18n/locales/es/agentManager.json - translation added
• webview-ui/src/i18n/locales/fr/agentManager.json - translation added
• webview-ui/src/i18n/locales/hi/agentManager.json - translation added
• webview-ui/src/i18n/locales/id/agentManager.json - translation added
• webview-ui/src/i18n/locales/it/agentManager.json - translation added
• webview-ui/src/i18n/locales/ja/agentManager.json - translation added
• webview-ui/src/i18n/locales/ko/agentManager.json - translation added
• webview-ui/src/i18n/locales/nl/agentManager.json - translation added
• webview-ui/src/i18n/locales/pl/agentManager.json - translation added
• webview-ui/src/i18n/locales/pt-BR/agentManager.json - translation added
• webview-ui/src/i18n/locales/ru/agentManager.json - translation added
• webview-ui/src/i18n/locales/th/agentManager.json - translation added
• webview-ui/src/i18n/locales/tr/agentManager.json - translation added
• webview-ui/src/i18n/locales/uk/agentManager.json - translation added
• webview-ui/src/i18n/locales/vi/agentManager.json - translation added
• webview-ui/src/i18n/locales/zh-CN/agentManager.json - translation added
• webview-ui/src/i18n/locales/zh-TW/agentManager.json - translation added
• webview-ui/src/kilocode/agent-manager/components/ChatInput.tsx - Create PR button and handler
• webview-ui/src/kilocode/agent-manager/components/SessionDetail.tsx - Props for Create PR feature
• webview-ui/src/kilocode/agent-manager/state/atoms/sessions.ts - parentBranch interface addition