feat(claude-code): use SDK ContentCaptureMode instead of manual stripping

[alexander-akhmetov]

Let the SDK handle content stripping via Config.ContentCapture instead of the plugin's own buildOutputRedacted path. Configured via SIGIL_CONTENT_CAPTURE_MODE env var (full, metadata_only, no_tool_content), defaulting to metadata_only.

---

Note

Medium Risk
Changes how conversation/tool content is included and redacted in exported generations and tool spans; mistakes could unintentionally increase captured sensitive data, though defaults and invalid-mode handling fail back to metadata_only. The change is isolated to the Claude Code plugin’s telemetry pipeline and updates tests/docs accordingly.

Overview
Switches the Claude Code sigil-cc hook from a boolean SIGIL_CONTENT_CAPTURE flag and plugin-side redaction/[redacted] output generation to the SDK’s Config.ContentCapture using SIGIL_CONTENT_CAPTURE_MODE (full, metadata_only, no_tool_content).

The mapper no longer conditionally strips content; it always builds Generation input/output and relies on the SDK to strip content for metadata_only, while the plugin only instantiates the redactor when content modes include text. Tool execution spans are updated to always populate arguments/results, with inclusion governed by the SDK mode, and tests/docs are updated plus legacy env var support is preserved via resolveContentMode().

^{Reviewed by Cursor Bugbot for commit d2eeead. Bugbot is set up for automated code reviews on this repo. Configure here.}

[alexander-akhmetov]

bugbot review

[cursor]

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit d2eeead. Configure here.}