Document common Electron patterns in frontend-developer agent

[itomek]

Context

From PR #149 review comment: #149 (comment)

we should include common pattern we use for electron apps to standardize.

Description

The frontend-developer Claude agent (.claude/agents/frontend-developer.md) should include documentation of common Electron app patterns used in GAIA to help standardize development across the project.

Scope

Research and document:

• Common Electron app structure patterns used in GAIA
• IPC (Inter-Process Communication) patterns
• Main process vs renderer process patterns
• WebSocket integration patterns
• Best practices from existing GAIA Electron apps (src/gaia/apps/*/webui/)

Acceptance Criteria

• Document 3-5 core Electron patterns used in GAIA
• Add patterns to .claude/agents/frontend-developer.md
• Include code examples or file references
• Verify patterns match existing GAIA apps (jira, llm, example)

[kovtcharov]

Stale — internal tooling concern, not a product issue.