v0.17.0

Minor Changes

• 77c9ee6: Add CustomControlWidget, which renders a prebuilt control artifact in a sandboxed iframe (allow-scripts only) and hosts it on the part's RobotClient through @viamrobotics/post-message-sdk, scoped to its own resource. The widget injects a Content Security Policy into every artifact so a control can reach nothing but the bridge, sizes the frame from the guest's reports within min-h-px max-h-[80vh], and contains a failing control in a <svelte:boundary> whose error snippet receives { failure, reset }. Add loadCustomControl, which fetches a resource's artifact over doCommand({ command: 'get-custom-control' }), and prepareArtifact plus CUSTOM_CONTROL_CSP.
• 002ef3c: Sections can keep their content on screen during the first load, with placeholders that pulse while data loads and read "—" when it is missing.
• af691d2: Sections show mutation errors, including those from forms inside them, in a heading indicator that copies them, instead of an error line below their content. Query errors move to the indicator in a later release.
• 8ae43b3: Standalone base and motor method widgets show their method name as a heading linked to its docs, like every other API section.

Patch Changes

• 7dae4ef: Widget sections show query errors in their heading indicator, and a section's first-load progress follows the queries it reads. Query errors no longer render as a line inside the section.
• 8ae43b3: Widget sections are no longer named landmarks, so screen readers stop listing each API section as a region. Loading bars are announced as "Loading".