[LOW] No request timeout on network operations

[Tsukieomie]

Reliability Issue: Missing Request Timeouts

Severity: LOW
Location: src/main/auth-manager.ts:45, 110 (auth exchange/refresh)

Description

fetch() calls without timeout can hang indefinitely, blocking auth flow.

Code

// No timeout ✗
const response = await fetch(tokenUrl, {
  method: 'POST',
  body: formData,
})

Risk

• Hanging requests block auth flow
• Poor user experience on slow/failing networks
• App appears frozen during network issues

Recommendation

Use AbortSignal.timeout()

const controller = new AbortController()
const timeout = setTimeout(() => controller.abort(), 10000)  // 10s

try {
  const response = await fetch(tokenUrl, {
    method: 'POST',
    body: formData,
    signal: controller.signal,  // ✓
  })
  clearTimeout(timeout)
} catch (err) {
  if (err.name === 'AbortError') {
    throw new Error('Request timeout - please check your network')
  }
  throw err
}

Or use modern API

// Modern browsers/Node support this
const response = await fetch(tokenUrl, {
  method: 'POST',
  body: formData,
  signal: AbortSignal.timeout(10000),  // ✓ Clean!
})

Files to Update

• src/main/auth-manager.ts - auth token exchange
• src/main/auth-manager.ts - token refresh
• Any other fetch() calls in codebase

Impact

Low - Improves reliability and user experience on poor networks.

Labels: enhancement, networking