Remove dead/unused code

Delete orphaned files and unreferenced exports flagged by knip/tsc:
- Remove Composer.ts (chat-composer element superseded by prompt-editor)
- Remove plugins/example/index.ts (never registered)
- Drop unused exports: enabledActions, gitDiffUrl, machineWorkspaceKey,
  GlobalSessionSocket, shouldShowMachineSwitcher, renderWorkspaceLabel,
  renderWorkspaceLabelItems, composerStyles alias
- Fix unused parseValue field in PersistentValueMap

src/client/src/actions.ts

@@ -7,7 +7,3 @@ export interface AppAction {
   enabled?: boolean;
   run: () => void | Promise<void>;
 }
-
-export function enabledActions(actions: AppAction[]): AppAction[] {
-  return actions.filter((action) => action.enabled !== false);
-}

src/client/src/api/urls.ts

@@ -10,14 +10,6 @@ function sessionCwd(session: SessionLookup): string | undefined {
   return typeof session === "string" ? undefined : session.cwd;
 }
 
-export function gitDiffUrl(projectId: string, workspaceId: string, options?: { path?: string; staged?: boolean }): string {
-  const params = new URLSearchParams();
-  if (options?.path !== undefined) params.set("path", options.path);
-  if (options?.staged === true) params.set("staged", "true");
-  const query = params.toString();
-  return `/api/projects/${encodeURIComponent(projectId)}/workspaces/${encodeURIComponent(workspaceId)}/git/diff${query ? `?${query}` : ""}`;
-}
-
 export function machineGitDiffUrl(machineId: string, projectId: string, workspaceId: string, options?: { path?: string; staged?: boolean }): string {
   const params = new URLSearchParams();
   if (options?.path !== undefined) params.set("path", options.path);

src/client/src/components/Composer.ts

@@ -1,43 +0,0 @@
-import { LitElement, html } from "lit";
-import { customElement, property, state } from "lit/decorators.js";
-import { composerStyles } from "./shared";
-
-@customElement("chat-composer")
-export class Composer extends LitElement {
-  @property({ type: Boolean }) disabled = false;
-  @property({ attribute: false }) onSend?: (text: string) => void;
-  @property({ attribute: false }) onStopSession?: () => void;
-  @state() private draft = "";
-
-  override render() {
-    return html`
-      <footer>
-        <textarea
-          .value=${this.draft}
-          ?disabled=${this.disabled}
-          @input=${(event: Event) => {
-            if (event.target instanceof HTMLTextAreaElement) this.draft = event.target.value;
-          }}
-          @keydown=${(e: KeyboardEvent) => {
-            if (e.key === "Enter" && !e.shiftKey) {
-              e.preventDefault();
-              this.send();
-            }
-          }}
-          placeholder="Message pi..."
-        ></textarea>
-        <button ?disabled=${this.disabled} @click=${() => { this.send(); }}>Send</button>
-        <button ?disabled=${this.disabled} @click=${() => this.onStopSession?.()}>Stop session</button>
-      </footer>
-    `;
-  }
-
-  private send() {
-    const text = this.draft.trim();
-    if (text === "" || this.disabled) return;
-    this.draft = "";
-    this.onSend?.(text);
-  }
-
-  static override styles = composerStyles;
-}

src/client/src/components/MachineSwitcher.ts

@@ -303,10 +303,6 @@ export class MachineSwitcher extends LitElement implements KeyboardNavigableSect
   `;
 }
 
-export function shouldShowMachineSwitcher(machines: readonly Machine[]): boolean {
-  return machines.length > 1;
-}
-
 function machineStatus(machine: Machine, statuses: Record<string, MachineHealth>): MachineStatus {
   return statuses[machine.id]?.status ?? machine.status ?? "unknown";
 }

src/client/src/components/shared.ts

@@ -144,7 +144,7 @@ export const appStyles = css`
   }
   status-bar { flex: 0 0 auto; }
   chat-view { flex: 1 1 auto; min-height: 0; overflow: hidden; }
-  prompt-editor, chat-composer { flex: 0 0 auto; }
+  prompt-editor { flex: 0 0 auto; }
   button { border: 1px solid var(--pi-border); border-radius: 8px; background: var(--pi-surface); color: var(--pi-text); padding: 7px 9px; cursor: pointer; }
   .empty { margin: auto; color: var(--pi-muted); }
   .error { padding: 10px 16px; border-bottom: 1px solid var(--pi-border); color: var(--pi-danger); }
@@ -486,5 +486,3 @@ export const promptEditorStyles = css`
     button { padding: 5px 7px; }
   }
 `;
-
-export const composerStyles = promptEditorStyles;

src/client/src/components/workspaceLabel.ts

@@ -1,19 +1,6 @@
 import { html, type TemplateResult } from "lit";
 import type { WorkspaceLabelItem } from "../plugins/types";
 
-export function renderWorkspaceLabel(label: string, items: WorkspaceLabelItem[] = [], title?: string): TemplateResult {
-  return html`
-    <span class="workspace-label">
-      <span class="workspace-label-base" title=${title ?? label}>${label}</span>
-      ${renderWorkspaceLabelItems(items)}
-    </span>
-  `;
-}
-
-export function renderWorkspaceLabelItems(items: WorkspaceLabelItem[] = []): TemplateResult[] {
-  return items.map((item) => html`<span class="workspace-label-separator">·</span>${renderWorkspaceLabelItem(item)}`);
-}
-
 export function renderWorkspaceLabelInlineItems(items: WorkspaceLabelItem[] = []): TemplateResult[] {
   return items.map((item, index) => html`${index === 0 ? null : html`<span class="workspace-label-separator">·</span>`}${renderWorkspaceLabelItem(item)}`);
 }

src/client/src/controllers/sessionStorageMemory.ts

@@ -22,7 +22,7 @@ export function browserSessionStorage(): KeyValueStorage | undefined {
 export class PersistentValueMap<T> {
   private readonly values = new Map<string, T>();
 
-  constructor(private readonly storageKey: string, private readonly parseValue: StorageValueParser<T>, private readonly storage = browserSessionStorage()) {
+  constructor(private readonly storageKey: string, parseValue: StorageValueParser<T>, private readonly storage = browserSessionStorage()) {
     for (const [key, value] of loadEntries(storageKey, parseValue, storage)) this.values.set(key, value);
   }
 

src/client/src/machineKeys.ts

@@ -4,9 +4,6 @@ export function machineProjectKey(machineId: string, projectId: string): string
   return `${machineId}:${projectId}`;
 }
 
-export function machineWorkspaceKey(machineId: string, projectId: string, workspaceId: string): string {
-  return `${machineId}:${projectId}:${workspaceId}`;
-}
 
 export function machineSessionKey(machineId: string, sessionId: string): string {
   return `${machineId}:${sessionId}`;

src/client/src/plugins/example/index.ts

@@ -1,45 +0,0 @@
-import { html } from "lit";
-import type { PiWebPlugin } from "../types";
-
-export const examplePlugin: PiWebPlugin = {
-  apiVersion: 1,
-  name: "Example Plugin",
-  activate: () => ({
-    contributions: {
-      actions: [
-        {
-          id: "workspace.show-path",
-          title: "Show Current Workspace Path",
-          group: "Example",
-          enabled: (context) => context.state.selectedWorkspace !== undefined,
-          run: (context) => {
-            const path = context.state.selectedWorkspace?.path ?? "No workspace selected";
-            window.alert(path);
-          },
-        },
-      ],
-      workspaceLabels: [
-        {
-          id: "workspace.example-label",
-          order: 100,
-          items: (context) => [{ type: "text", text: context.workspace.isGitRepo ? "git" : "folder", title: context.workspace.path }],
-        },
-      ],
-      workspacePanels: [
-        {
-          id: "workspace.info",
-          title: "Info",
-          order: 100,
-          render: (context) => html`
-            <section class="toolbar"><strong>Info</strong></section>
-            <section class="viewer">
-              <p><strong>Workspace</strong></p>
-              <p class="muted">${context.workspace.label}</p>
-              <p class="muted">${context.workspace.path}</p>
-            </section>
-          `,
-        },
-      ],
-    },
-  }),
-};

src/client/src/sessionSocket.ts

@@ -1,4 +1,4 @@
-import { globalSessionEvents, realtimeEvents, sessionEvents } from "./api";
+import { realtimeEvents, sessionEvents } from "./api";
 import type { GlobalSessionEvent, RealtimeEvent, SessionRef, SessionUiEvent } from "../../shared/apiTypes";
 
 export type { GlobalSessionEvent, RealtimeEvent, SessionUiEvent } from "../../shared/apiTypes";
@@ -129,60 +129,6 @@ export class RealtimeSocket {
   }
 }
 
-export class GlobalSessionSocket {
-  private socket: WebSocket | undefined;
-  private onEvent: ((event: GlobalSessionEvent) => void) | undefined;
-  private reconnectTimer?: number;
-  private reconnectDelay = 500;
-  private shouldReconnect = false;
-  private machineId = "local";
-
-  connect(onEvent: (event: GlobalSessionEvent) => void, machineId = "local"): void {
-    this.close();
-    this.machineId = machineId;
-    this.onEvent = onEvent;
-    this.shouldReconnect = true;
-    this.open();
-  }
-
-  close(): void {
-    this.shouldReconnect = false;
-    window.clearTimeout(this.reconnectTimer);
-    closeSocketQuietly(this.socket);
-    this.socket = undefined;
-    this.onEvent = undefined;
-    this.machineId = "local";
-  }
-
-  private open(): void {
-    if (!this.shouldReconnect) return;
-    const socket = globalSessionEvents(this.machineId);
-    this.socket = socket;
-    socket.onopen = () => {
-      this.reconnectDelay = 500;
-    };
-    socket.onmessage = (message) => void this.handleMessage(message.data);
-    socket.onerror = () => { socket.close(); };
-    socket.onclose = () => {
-      if (this.socket === socket) this.socket = undefined;
-      this.scheduleReconnect();
-    };
-  }
-
-  private scheduleReconnect(): void {
-    if (!this.shouldReconnect) return;
-    window.clearTimeout(this.reconnectTimer);
-    const delay = this.reconnectDelay;
-    this.reconnectDelay = Math.min(this.reconnectDelay * 1.6, 5000);
-    this.reconnectTimer = window.setTimeout(() => { this.open(); }, delay);
-  }
-
-  private async handleMessage(data: MessageEvent["data"]): Promise<void> {
-    const event = await parseSocketEvent(data);
-    if (isGlobalSessionEvent(event)) this.onEvent?.(event);
-  }
-}
-
 function isSessionUiEvent(event: unknown): event is SessionUiEvent {
   const type = eventType(event);
   return ["message.append", "assistant.delta", "assistant.thinking.delta", "tool.start", "tool.update", "tool.end", "shell.start", "shell.chunk", "shell.end", "agent.start", "agent.end", "message.end", "status.update", "activity.update", "command.output", "session.error", "session.name", "pi.event"].includes(type);