Lift drill into evals/ at 013fcb8b7dbefd6d3fa4653493e5d2ec8e7f985b

rsync of obra/drill@013fcb8b7d into superpowers/evals/, excluding
.git/, .venv/, results/, .env/, __pycache__/, *.egg-info/,
.private-journal/.

The drill repo is unaffected by this commit; archival is a separate
manual step after this PR merges.

Source SHA recorded at evals/.drill-source-sha for divergence
detection.

evals/backends/claude.yaml

@@ -0,0 +1,32 @@
+name: claude
+cli: claude
+args:
+  - "--dangerously-skip-permissions"
+  - "--plugin-dir"
+  - "${SUPERPOWERS_ROOT}"
+  - "--model"
+  - "opus"
+required_env:
+  - ANTHROPIC_API_KEY
+  - SUPERPOWERS_ROOT
+hooks:
+  pre_run: []
+  post_run: []
+shutdown: "/exit"
+idle:
+  quiescence_seconds: 3
+  ready_pattern: "^❯|^\\$|Human:|Enter to confirm"
+# Matches when Claude is actively working — spinners, "Thinking", time counter,
+# or "esc to cancel". Engine extends its wait deadline when any of these match
+# so the Actor doesn't interrupt long-running subagent work (e.g., wave execution).
+busy_pattern: "esc to cancel|Thinking\\.\\.\\.|\\(esc to cancel[^)]*\\)|[⠇⠏⠋⠙⠹⠸⠼⠴⠦⠧⠶⠾⠽⠻⠿]"
+# Maximum total seconds the engine will extend the deadline across all busy
+# detections during a single _wait_for_ready call. Wave execution can take
+# 10-20 minutes per wave, so 30 minutes gives plenty of headroom.
+max_busy_seconds: 1800
+startup_timeout: 60
+terminal:
+  cols: 200
+  rows: 50
+session_logs:
+  pattern: "~/.claude/projects/**/session-*.jsonl"