feat: show container progress in modal and add terminal jump-to-bottom button

Show container start/stop/rebuild progress as a modal popup instead of
inline text that was never visible. Add optimistic status updates so the
status dot turns yellow immediately. Also add a "Jump to Current" button
in the terminal when scrolled away from the bottom.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/src/components/projects/ContainerProgressModal.tsx

@@ -0,0 +1,109 @@
+import { useEffect, useRef, useCallback } from "react";
+
+interface Props {
+  projectName: string;
+  operation: "starting" | "stopping" | "resetting";
+  progressMsg: string | null;
+  error: string | null;
+  completed: boolean;
+  onForceStop: () => void;
+  onClose: () => void;
+}
+
+const operationLabels: Record<string, string> = {
+  starting: "Starting",
+  stopping: "Stopping",
+  resetting: "Resetting",
+};
+
+export default function ContainerProgressModal({
+  projectName,
+  operation,
+  progressMsg,
+  error,
+  completed,
+  onForceStop,
+  onClose,
+}: Props) {
+  const overlayRef = useRef<HTMLDivElement>(null);
+
+  // Auto-close on success after 800ms
+  useEffect(() => {
+    if (completed && !error) {
+      const timer = setTimeout(onClose, 800);
+      return () => clearTimeout(timer);
+    }
+  }, [completed, error, onClose]);
+
+  // Escape to close (only when completed or error)
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === "Escape" && (completed || error)) onClose();
+    };
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [completed, error, onClose]);
+
+  const handleOverlayClick = useCallback(
+    (e: React.MouseEvent<HTMLDivElement>) => {
+      if (e.target === overlayRef.current && (completed || error)) onClose();
+    },
+    [completed, error, onClose],
+  );
+
+  const inProgress = !completed && !error;
+
+  return (
+    <div
+      ref={overlayRef}
+      onClick={handleOverlayClick}
+      className="fixed inset-0 bg-black/50 flex items-center justify-center z-50"
+    >
+      <div className="bg-[var(--bg-secondary)] border border-[var(--border-color)] rounded-lg p-6 w-80 shadow-xl text-center">
+        <h3 className="text-sm font-semibold mb-4">
+          {operationLabels[operation]} &ldquo;{projectName}&rdquo;
+        </h3>
+
+        {/* Spinner / checkmark / error icon */}
+        <div className="flex justify-center mb-3">
+          {error ? (
+            <span className="text-3xl text-[var(--error)]">✕</span>
+          ) : completed ? (
+            <span className="text-3xl text-[var(--success)]">✓</span>
+          ) : (
+            <div className="w-8 h-8 border-2 border-[var(--accent)] border-t-transparent rounded-full animate-spin" />
+          )}
+        </div>
+
+        {/* Progress message */}
+        <p className="text-xs text-[var(--text-secondary)] min-h-[1.25rem] mb-4">
+          {error
+            ? <span className="text-[var(--error)]">{error}</span>
+            : completed
+              ? "Done!"
+              : progressMsg ?? `${operationLabels[operation]}...`}
+        </p>
+
+        {/* Buttons */}
+        <div className="flex justify-center gap-2">
+          {inProgress && (
+            <button
+              onClick={(e) => { e.stopPropagation(); onForceStop(); }}
+              className="px-3 py-1.5 text-xs text-[var(--error)] border border-[var(--error)]/30 rounded hover:bg-[var(--error)]/10 transition-colors"
+            >
+              Force Stop
+            </button>
+          )}
+          {(completed || error) && (
+            <button
+              onClick={(e) => { e.stopPropagation(); onClose(); }}
+              className="px-3 py-1.5 text-xs text-[var(--text-secondary)] hover:text-[var(--text-primary)] border border-[var(--border-color)] rounded transition-colors"
+            >
+              Close
+            </button>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}

app/src/components/projects/ProjectCard.tsx

@@ -8,6 +8,7 @@ import { useAppState } from "../../store/appState";
 import EnvVarsModal from "./EnvVarsModal";
 import PortMappingsModal from "./PortMappingsModal";
 import ClaudeInstructionsModal from "./ClaudeInstructionsModal";
+import ContainerProgressModal from "./ContainerProgressModal";
 
 interface Props {
   project: Project;
@@ -25,6 +26,8 @@ export default function ProjectCard({ project }: Props) {
   const [showPortMappingsModal, setShowPortMappingsModal] = useState(false);
   const [showClaudeInstructionsModal, setShowClaudeInstructionsModal] = useState(false);
   const [progressMsg, setProgressMsg] = useState<string | null>(null);
+  const [activeOperation, setActiveOperation] = useState<"starting" | "stopping" | "resetting" | null>(null);
+  const [operationCompleted, setOperationCompleted] = useState(false);
   const isSelected = selectedProjectId === project.id;
   const isStopped = project.status === "stopped" || project.status === "error";
 
@@ -79,16 +82,25 @@ export default function ProjectCard({ project }: Props) {
     return () => { unlisten.then((f) => f()); };
   }, [project.id]);
 
-  // Clear progress when status settles
+  // Mark operation completed when status settles
   useEffect(() => {
     if (project.status === "running" || project.status === "stopped" || project.status === "error") {
-      setProgressMsg(null);
+      if (activeOperation) {
+        setOperationCompleted(true);
+      }
+      // Clear progress if no modal is managing it
+      if (!activeOperation) {
+        setProgressMsg(null);
+      }
     }
-  }, [project.status]);
+  }, [project.status, activeOperation]);
 
   const handleStart = async () => {
     setLoading(true);
     setError(null);
+    setProgressMsg(null);
+    setOperationCompleted(false);
+    setActiveOperation("starting");
     try {
       await start(project.id);
     } catch (e) {
@@ -101,6 +113,9 @@ export default function ProjectCard({ project }: Props) {
   const handleStop = async () => {
     setLoading(true);
     setError(null);
+    setProgressMsg(null);
+    setOperationCompleted(false);
+    setActiveOperation("stopping");
     try {
       await stop(project.id);
     } catch (e) {
@@ -118,6 +133,21 @@ export default function ProjectCard({ project }: Props) {
     }
   };
 
+  const handleForceStop = async () => {
+    try {
+      await stop(project.id);
+    } catch (e) {
+      setError(String(e));
+    }
+  };
+
+  const closeModal = () => {
+    setActiveOperation(null);
+    setOperationCompleted(false);
+    setProgressMsg(null);
+    setError(null);
+  };
+
   const defaultBedrockConfig: BedrockConfig = {
     auth_method: "static_credentials",
     aws_region: "us-east-1",
@@ -324,6 +354,10 @@ export default function ProjectCard({ project }: Props) {
                 <ActionButton
                   onClick={async () => {
                     setLoading(true);
+                    setError(null);
+                    setProgressMsg(null);
+                    setOperationCompleted(false);
+                    setActiveOperation("resetting");
                     try { await rebuild(project.id); } catch (e) { setError(String(e)); }
                     setLoading(false);
                   }}
@@ -747,6 +781,18 @@ export default function ProjectCard({ project }: Props) {
           onClose={() => setShowClaudeInstructionsModal(false)}
         />
       )}
+
+      {activeOperation && (
+        <ContainerProgressModal
+          projectName={project.name}
+          operation={activeOperation}
+          progressMsg={progressMsg}
+          error={error}
+          completed={operationCompleted}
+          onForceStop={handleForceStop}
+          onClose={closeModal}
+        />
+      )}
     </div>
   );
 }

app/src/components/terminal/TerminalView.tsx

@@ -25,6 +25,7 @@ export default function TerminalView({ sessionId, active }: Props) {
 
   const [detectedUrl, setDetectedUrl] = useState<string | null>(null);
   const [imagePasteMsg, setImagePasteMsg] = useState<string | null>(null);
+  const [isAtBottom, setIsAtBottom] = useState(true);
 
   useEffect(() => {
     if (!containerRef.current) return;
@@ -86,6 +87,12 @@ export default function TerminalView({ sessionId, active }: Props) {
       sendInput(sessionId, data);
     });
 
+    // Track scroll position to show "Jump to Current" button
+    const scrollDisposable = term.onScroll(() => {
+      const buf = term.buffer.active;
+      setIsAtBottom(buf.viewportY >= buf.baseY);
+    });
+
     // Handle image paste: intercept paste events with image data,
     // upload to the container, and inject the file path into terminal input.
     const handlePaste = (e: ClipboardEvent) => {
@@ -164,6 +171,7 @@ export default function TerminalView({ sessionId, active }: Props) {
       detector.dispose();
       detectorRef.current = null;
       inputDisposable.dispose();
+      scrollDisposable.dispose();
       containerRef.current?.removeEventListener("paste", handlePaste, { capture: true });
       outputPromise.then((fn) => fn?.());
       exitPromise.then((fn) => fn?.());
@@ -231,6 +239,11 @@ export default function TerminalView({ sessionId, active }: Props) {
     }
   }, [detectedUrl]);
 
+  const handleScrollToBottom = useCallback(() => {
+    termRef.current?.scrollToBottom();
+    setIsAtBottom(true);
+  }, []);
+
   return (
     <div
       ref={terminalContainerRef}
@@ -251,6 +264,14 @@ export default function TerminalView({ sessionId, active }: Props) {
           {imagePasteMsg}
         </div>
       )}
+      {!isAtBottom && (
+        <button
+          onClick={handleScrollToBottom}
+          className="absolute bottom-4 right-4 z-50 px-3 py-1.5 rounded-md text-xs font-medium bg-[#1f2937] text-[#58a6ff] border border-[#30363d] shadow-lg hover:bg-[#2d3748] transition-colors cursor-pointer"
+        >
+          Jump to Current ↓
+        </button>
+      )}
       <div
         ref={containerRef}
         className="w-full h-full"

app/src/hooks/useProjects.ts

@@ -50,31 +50,45 @@ export function useProjects() {
     [removeProjectFromList],
   );
 
+  const setOptimisticStatus = useCallback(
+    (id: string, status: "starting" | "stopping") => {
+      const { projects } = useAppState.getState();
+      const project = projects.find((p) => p.id === id);
+      if (project) {
+        updateProjectInList({ ...project, status });
+      }
+    },
+    [updateProjectInList],
+  );
+
   const start = useCallback(
     async (id: string) => {
+      setOptimisticStatus(id, "starting");
       const updated = await commands.startProjectContainer(id);
       updateProjectInList(updated);
       return updated;
     },
-    [updateProjectInList],
+    [updateProjectInList, setOptimisticStatus],
   );
 
   const stop = useCallback(
     async (id: string) => {
+      setOptimisticStatus(id, "stopping");
       await commands.stopProjectContainer(id);
       const list = await commands.listProjects();
       setProjects(list);
     },
-    [setProjects],
+    [setProjects, setOptimisticStatus],
   );
 
   const rebuild = useCallback(
     async (id: string) => {
+      setOptimisticStatus(id, "starting");
       const updated = await commands.rebuildProjectContainer(id);
       updateProjectInList(updated);
       return updated;
     },
-    [updateProjectInList],
+    [updateProjectInList, setOptimisticStatus],
   );
 
   const update = useCallback(