v1.1.0

Added

• ollama adapter — local-model backend (internal/ai/ollamacli.go, closes #30).
  teststop now ships a first-class ollama adapter that calls the ollama HTTP API at
  localhost:11434. No subprocess, no API key, no account quota.

  • Default model: qwen3.6:latest (36B Q4_K_M). Override with TESTSTOP_MODEL.
  • stream: false, think: false, num_ctx: 32768 per request.
  • Automatic <think>…</think> block stripping for qwen3 models on older ollama builds.
  • JSON-only output constraint appended to the mandate for local models (local models are
    less instruction-following than cloud models; cloud adapters are unaffected).
  • IsOllamaAvailable() pings localhost:11434 with a 2s timeout for fast detection.

• Auto-detection precedence changed: ollama → claude → copilot.
  TESTSTOP_CLI=auto (the default) now prefers ollama when the local server is reachable.
  Cloud CLIs (claude, copilot) are still fully supported but opt-in:
  TESTSTOP_CLI=claude or TESTSTOP_CLI=copilot. TESTSTOP_CLI=ollama forces ollama only.

  Quality tradeoff (measured, against waymark API project):

  Model	Scenarios	Time	Notes
  qwen3.6:latest	29–31	~3–4 min	High specificity; IDOR, race conditions, token expiry
  gemma4:latest	52	~8 min	Most thorough; covers auth, concurrency, edge inputs
  qwen3:4b	—	—	Not viable; outputs reasoning prose, never generates JSON

  Scenario depth and edge-case creativity from local models are moderately lower than
  claude's output. For production runs where quota is not a concern,
  TESTSTOP_CLI=claude remains the highest-quality choice.

• Resilient JSON parsing for local models (ParseScenariosFromJSON). Local models
  produce sloppier output than cloud CLIs. The parser now uses a three-pass strategy:
  (1) direct unmarshal; (2) extract […] from prose-wrapped output (qwen3:4b pattern —
  reasoning before JSON); (3) sanitize invalid JSON escape sequences then retry (gemma4
  pattern — emits \xNN hex notation which is not valid JSON). Cloud adapter output
  is unaffected (pass 1 always succeeds for claude/copilot).

• Design document (docs/design/ollama-adapter.md). Records the HTTP-vs-CLI decision,
  num_ctx rationale, think: false approach, and JSON-suffix strategy.

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