Task timeout too short for large test suites (300s default)

[robotlearning123]

Problem

Default --timeout is 300 seconds (5 minutes). For repos with large test suites (e.g., 2179 tests with coverage), make test can exceed this easily.

Observed Behavior

Task f3b31fb784884a86 (running make test on LabClaw with 2179 tests + 100% coverage check) timed out at 300s. The agent actually completed the work, but the status shows timeout.

Expected Behavior

• Default timeout should be longer (e.g., 600s or 900s) for repos with large test suites
• OR auto-detect test suite size and adjust timeout
• OR clearly warn in docs that 300s may not be enough for projects with >500 tests

Suggested Fix

Increase default timeout to 600s, or add --timeout auto mode that estimates based on repo size.