Fix terminal scrolling and focus behavior

src/design/motion.css

@@ -27,17 +27,6 @@
   will-change: opacity;
 }
 
-/* ------------------------------------------------------------------
-   Spinner rotate. Used by AgentChrome's status indicator when a
-   Claude/Codex/Gemini session is in `working` or `compacting`. The
-   spinner is a CSS ring with a transparent right border; rotating
-   the whole ring reads as the standard "thinking" affordance.
-   ------------------------------------------------------------------ */
-@keyframes goonware-spin {
-  0%   { transform: rotate(0deg); }
-  100% { transform: rotate(360deg); }
-}
-
 /* ------------------------------------------------------------------
    Three-dot loading indicator.
    Used inside: highlight-and-ask card while waiting for Gemini,

src/state/agentActivityStore.test.ts

@@ -365,7 +365,7 @@ describe("forceEvictForCwd — SIGKILL drops sessions definitively", () => {
   });
 });
 
-describe("resolveSessionForCwd — AgentChrome picks the right session", () => {
+describe("resolveSessionForCwd — per-pane lookup picks the right session", () => {
   test("returns null for empty cwd", () => {
     expect(__internals.resolveSessionForCwd("")).toBeNull();
   });

src/state/agentActivityStore.ts

@@ -287,7 +287,7 @@ export function forceIdleForCwd(cwd: string): void {
  * hook will never arrive. Without this, the next time the user runs
  * `claude` in the same pane the old record is still in the map; the
  * sidebar spinner stays on (any working session counts) and the
- * per-pane AgentChrome can briefly show the killed agent's last
+ * per-pane session consumers can briefly show the killed agent's last
  * status before the new SessionStart record overrides it.
  *
  * This is intentionally more aggressive than `forceIdleForCwd`. That
@@ -331,7 +331,7 @@ export function useTrackAgentActivity(_worktreeId: string, cwd: string): boolean
 
 /**
  * Return the most-recently-updated SessionRecord whose cwd is at or
- * below `cwd`, or null if none. Used by the per-pane AgentChrome to
+ * below `cwd`, or null if none. Used by per-pane session consumers to
  * show "Claude is using Read" / "waiting for permission" / etc.
  *
  * "Most recent" matters when the user has multiple agents touching