feat: add task management CLI and improve activity curation

- Add task store with dependency tracking and CLI (packages/server/src/tasks/)
- Extract principal param logic to shared util for server/app reuse
- Improve activity curator: collapse timeline, dedupe tool calls, simpler output
- Add MessageInput ref for focus control after agent cancel
- Include recent activity in wait timeout messages

🤖 Generated with [Claude Code](https://claude.com/claude-code)

packages/app/src/utils/tool-call-parsers.ts

@@ -754,39 +754,10 @@ export function extractKeyValuePairs(result: unknown): KeyValuePair[] {
 }
 
 // ---- Principal Parameter Extraction ----
-
-const PrincipalParamSchema = z.union([
-  z.object({ file_path: z.string() }).transform((d) => ({ type: "path" as const, value: d.file_path })),
-  z.object({ filePath: z.string() }).transform((d) => ({ type: "path" as const, value: d.filePath })),
-  z.object({ path: z.string() }).transform((d) => ({ type: "path" as const, value: d.path })),
-  z.object({ command: z.string() }).transform((d) => ({ type: "text" as const, value: d.command })),
-  z.object({ pattern: z.string() }).transform((d) => ({ type: "text" as const, value: d.pattern })),
-  z.object({ query: z.string() }).transform((d) => ({ type: "text" as const, value: d.query })),
-  z.object({ url: z.string() }).transform((d) => ({ type: "text" as const, value: d.url })),
-]);
-
-export function stripCwdPrefix(filePath: string, cwd?: string): string {
-  if (!cwd || !filePath) return filePath;
-
-  const normalizedCwd = cwd.replace(/\\/g, "/").replace(/\/+$/, "");
-  const normalizedPath = filePath.replace(/\\/g, "/");
-
-  const prefix = `${normalizedCwd}/`;
-  if (normalizedPath.startsWith(prefix)) {
-    return normalizedPath.slice(prefix.length);
-  }
-  if (normalizedPath === normalizedCwd) {
-    return ".";
-  }
-  return filePath;
-}
-
-export function extractPrincipalParam(args: unknown, cwd?: string): string | undefined {
-  const parsed = PrincipalParamSchema.safeParse(args);
-  if (!parsed.success) {
-    return undefined;
-  }
-
-  const { type, value } = parsed.data;
-  return type === "path" ? stripCwdPrefix(value, cwd) : value;
-}
+// Re-export from server to avoid drift
+export {
+  extractPrincipalParam,
+  stripCwdPrefix,
+  extractTodos,
+  type TodoItem,
+} from "@paseo/server/utils/tool-call-parsers";