Improve startup responsiveness and admin prompt motion

.codex/skills/design-proxywarden-ui/references/motion-and-interaction.md

@@ -28,12 +28,22 @@ Use `cubic-bezier(0.16, 1, 0.3, 1)` for arrivals and interaction feedback.
 - Keep mode selectors outside the keyed content they replace. Let the new content enter with a short directional fade and blur while focus remains on the selected mode.
 - For user-triggered sorting, fade and lightly blur the reordered list as one surface; row stagger stays bounded and saved data order does not change.
 
+## Anchored disclosures
+
+- Keep the trigger fixed while its surface opens and closes. Position its resting hit area with grid, flex, or logical inset properties; never rely on a placement `transform` that hover or active feedback can replace.
+- Give the surface, background, copy, and actions one origin and one timeline. They should emerge from the trigger together; do not make the background pop before the trigger or appear after the content.
+- Keep animated disclosure content mounted through entry and exit. Gate pointer and keyboard access separately; conditional rendering directly into the final state is not an entrance animation.
+- Design opening and closing together. Preserve visible reverse motion long enough before fading opacity, and keep both directions interruptible under repeated clicks.
+- Let explicit product feedback override the default easing. When a component calls for a slow start followed by acceleration, define a local curve instead of forcing the global ease-out.
+- Compose hover and active feedback without changing the resting position. If transform composition is unavoidable, use separate wrappers, individual transform properties, or shared custom properties and verify every state.
+- Keep decorative sweeps subordinate to state motion, low-opacity, bounded to the surface, and finished cleanly. The disclosure must remain legible without the effect.
+
 ## Lists and disclosures
 
 - Reveal dynamic rows with opacity, light blur, and a small transform.
 - On hover, let a row lift one or two pixels and reveal a restrained local surface/light; keep resting rows visually flat.
 - Animate status dots through color, light, and a small scale change instead of animating a surrounding badge or border.
-- Keep departing rows mounted until their exit animation completes; remove immediately under reduced motion.
+- Keep departing rows and disclosures mounted until their exit animation completes; remove immediately under reduced motion.
 - Bound list stagger to 60-100ms and never make interaction latency grow with list length.
 - Tooltips appear quickly above the trigger as independent translucent surfaces and never inherit trigger transforms or filters.