clarifier_llm: sha1 -> sha256 for the non-security cache-discriminator (CWE-327 false positive). github_adapter + github_intake: inline nosemgrep on the urlopen lines (dynamic-urllib-use-detected) — the URL is built from a fixed https GitHub API base, dynamic part is the path only, no SSRF/file:// surface (extends the existing noqa:S310 trusted-host judgment to semgrep). Scanner now reports 0 mediums on the agent-team scope.
Adds the billing-seam invoker (claude_agent_sdk subscription-OAuth, deferred import, API/Bedrock paths) and the Claude-backed clarifier callables (ConfidenceAssessor/QuestionGenerator, one call/turn memoized on (thread_id,len,content-hash), fail-safe to 0.0 so garbage never clears the 98% human gate).
