test(inspect): add CLI coverage for whatif classification and error path

[github-actions]

Test Gap Fixes

Test suite snapshot: 3208 unit/integration tests total; 11 tests in tests/inspect_integration.rs (was 8)

Added Coverage

Module	Function/Path	Why It Matters	Test Added
src/inspect/cli.rs (dispatch_whatif) / src/inspect/whatif.rs	End-to-end ado-aw whatif --fail <job> text output	The whatif CLI subcommand had unit tests for the classifier logic but zero end-to-end coverage exercising the actual binary/CLI dispatch path (source parse → compile → summary → analyze → render). Verifies downstream jobs are correctly labeled runs_anyway/skipped from real compiled conditions.	whatif_classifies_downstream_jobs_by_condition
src/inspect/cli.rs (dispatch_whatif --json)	ado-aw whatif --json structured report schema	Machine-readable output is a public contract consumed by other tooling (e.g. mcp-author); nothing previously asserted the JSON shape (failing_node.kind/id, classification values) survives the full CLI path.	whatif_json_emits_structured_report
src/inspect/whatif.rs (resolve_failing_node error path)	--fail <unknown-id> error handling	The WhatIfError::UnknownFailId error path was untested at the CLI boundary — confirms the command fails non-zero with a clear message instead of panicking or silently succeeding.	whatif_unknown_fail_id_errors

Validation

• cargo test --test inspect_integration (11/11 passed)
• cargo clippy --all-targets --all-features (no new warnings; pre-existing warning in create_work_item.rs unrelated to this change)

Scope

Only tests/inspect_integration.rs was modified; no production code changes.

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This PR was created by the automated test gap finder. Previous run: 2026-08-24. Modules audited this cycle: src/inspect/cli.rs whatif CLI wiring.

Generated by Test Gap Finder · auto · 78.5 AIC · ⌖ 6.61 AIC · ⊞ 11.5K · ◷

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