Infrastructure: Expose bounded persisted desktop test-run and artifact queries #4439

Goal

Agents and a future management facade need to read test-run status and results without keeping a model call open for an entire suite or parsing raw reports. Expose bounded, authorized queries over the collector's persisted results.

Part of #4435 (plan item F8).

Scope

• Owner: harness reporting.
• Paths (under packages/agentic/): desktop-test/src/reporting/*, a real run-query implementation and client, and report contracts and tests.
• Reuse the collector's authoritative persisted result. Add bounded status and pages, terminal versus incomplete semantics, and authorized opaque run and artifact IDs.
• Keep the schemas in the harness, not in the driver or MCP adapter.

Dependencies

• Blocked by: nothing.
• Unblocks: F13 Infrastructure: Add the generalized desktop-mcp management facet #4450.
• Parallel with: F1 Infrastructure: Unify desktop driver-service composition and wire durable recovery #4436, F4 Infrastructure: Settle Storybook story-provider cancellation and reconnect epochs #4437, F7 Infrastructure: Guard neutral desktop package dependency and import boundaries #4438, F12 Infrastructure: Attenuate desktop driver grants and isolate MCP connections #4440, and F15 Infrastructure: Live-qualify the desktop driver and MCP foundation on macOS, Windows, and Win32 #4441.
• Related: Infrastructure: Reject all-skipped WDIO runs as completed coverage #4342 (all-skipped WDIO runs reported as passed).

Acceptance

• Large, unfinished, or all-skipped runs cannot be reported as success.
• Reconnecting a reader does not restart execution.
• Omission counts are explicit.
• Artifact queries cannot accept model-supplied paths.
• Redaction and retention apply before any model-visible projection.

Validation

• Iterate with focused yarn test <name> in each changed package, then run its yarn format, yarn lint, yarn build, and yarn test. Finish with yarn clean-lage-cache then yarn lage buildci; run yarn lage test-links --verbose --grouped after markdown changes.
• Add a patch changeset for each changed published package. Update the owning references/current-status.md rows (done, work in progress, unsupported) and affected README/AGENTS guidance in the same change.
• Native, provider, or process-topology changes need matching-OS native contracts and the affected consumer lane. JavaScript tests and bundles do not qualify native behavior; hosted capability skips are not passes. Report each check as passed, failed, skipped, not run, or unsupported.

Evidence

• Current state: "Bounded persisted run-query/control API" in packages/agentic/desktop-test/references/current-status.md.
• Retired plan: driver-next.md at 0569e1b86, section 8 (F8).