[Praket7]

What changed

• Add bounded postcondition readback after Windows UIA Invoke so delayed WPF accessibility updates can verify without re-dispatching the action.
• Strengthen the fixture to independently record exactly one submission and check decoy and disabled controls.
• Add a Windows-safe Node launcher and validate the packaged stdio configuration.
• Negotiate the MCP handshake versions Codex and other clients use, including 2025-06-18; previously Comptrol rejected that version with protocol_version_unsupported, so Codex omitted every Comptrol tool from its task catalog.
• Keep the Codex plugin manifest and portable MCP package metadata aligned.

Verification

• cargo test --release --locked -p comptrol: 106 unit tests and 1 browser bridge integration test passed.
• scripts/windows_uia_conformance.py: verified UIA press; fixture recorded one submission, no decoy or disabled control activation.
• scripts/npm_mcp_conformance.py: verified the 2025-06-18 handshake, all seven tools, and system ping.
• Cloned the branch from GitHub and repeated the build, tests, launcher handshake, and UIA fixture checks from that clean checkout.
• A fresh Codex CLI task initialized both configured Comptrol connections at protocol 2025-06-18 and listed Comptrol tools.

Closes #14