refactor(typeaware): no-unnecessary-type-conversion + unbound-method sweep (T3.b partial) (#754)

* refactor: clear no-unnecessary-type-conversion + unbound-method (T3.b partial)

Fixes 15 files within the hard cap:

unbound-method (interface method shorthand → property function syntax):
- pane-context.tsx: PaneContextValue + PaneFocusContextValue (fixes agent-panel, browser-panel, draft-panel)
- provider-runner.ts: ProviderTurnRunner interface
- process-tree.ts: process.kill.bind(process)

no-unnecessary-type-conversion (remove redundant Boolean()/String() wraps):
- agent-timeline-store.ts, worktree-session.ts, pairing-qr.ts
- sherpa-realtime-session.ts, sherpa-stt.ts (String() → direct call chain)
- workspace-execution.ts, confirm-dialog.ts, use-archive-agent.ts
- use-agent-history.ts, left-sidebar.tsx, autocomplete.tsx, dropdown-menu.tsx

Deferred (9 errors across 7 files, all single-line Boolean(hovered) removals):
project-picker-modal.tsx, agent-list.tsx, branch-switcher.tsx,
file-explorer-pane.tsx, workspace-open-in-editor-button.tsx,
browser-pane.electron.tsx, sortable-inline-list.web.tsx

* fix(app): preserve Boolean coercion fallback in archive state lookups

readPendingState(...)[key] and (pendingQuery.data ?? {})[key] return
boolean | undefined at runtime — noUncheckedIndexedAccess is off so
TypeScript types this as boolean but the actual value can be undefined.
Add ?? false to maintain the explicit boolean return contract.

packages/server/src/server/agent/agent-timeline-store.ts

@@ -94,7 +94,7 @@ function fetchAfter(ctx: FetchContext): AgentTimelineFetchResult {
     gap: false,
     window,
     hasOlder: selected[0].seq > minSeq,
-    hasNewer: Boolean(lastSelected && lastSelected.seq < maxSeq),
+    hasNewer: lastSelected !== null && lastSelected !== undefined && lastSelected.seq < maxSeq,
     rows: selected.map(cloneRow),
   };
 }

packages/server/src/server/agent/providers/provider-runner.ts

@@ -12,9 +12,9 @@ export type ProviderFinalTextReducer = (params: {
 }) => string;
 
 export interface ProviderTurnRunner {
-  startTurn(prompt: AgentPromptInput, options?: AgentRunOptions): Promise<{ turnId: string }>;
-  subscribe(callback: (event: AgentStreamEvent) => void): () => void;
-  getSessionId(): string | Promise<string>;
+  startTurn: (prompt: AgentPromptInput, options?: AgentRunOptions) => Promise<{ turnId: string }>;
+  subscribe: (callback: (event: AgentStreamEvent) => void) => () => void;
+  getSessionId: () => string | Promise<string>;
 }
 
 export interface RunProviderTurnOptions extends ProviderTurnRunner {

packages/server/src/server/pairing-qr.ts

@@ -13,7 +13,7 @@ function parseBooleanEnv(value: string | undefined): boolean | undefined {
 function shouldPrintPairingQr(): boolean {
   const env = parseBooleanEnv(process.env.PASEO_PAIRING_QR);
   if (env !== undefined) return env;
-  return Boolean(process.stdout.isTTY);
+  return process.stdout.isTTY ?? false;
 }
 
 export async function renderPairingQr(url: string): Promise<string> {

packages/server/src/server/speech/providers/local/sherpa/sherpa-realtime-session.ts

@@ -59,10 +59,10 @@ export class SherpaRealtimeTranscriptionSession
       }
 
       const rawResult = this.engine.recognizer.getResult(this.stream);
-      const text = String(
+      const text = (
         (typeof rawResult === "object" && rawResult && "text" in rawResult
           ? rawResult.text
-          : undefined) ?? "",
+          : undefined) ?? ""
       ).trim();
       if (text !== this.lastPartialText) {
         this.lastPartialText = text;
@@ -97,10 +97,10 @@ export class SherpaRealtimeTranscriptionSession
       }
 
       const rawFinal = this.engine.recognizer.getResult(this.stream);
-      const finalText = String(
+      const finalText = (
         (typeof rawFinal === "object" && rawFinal && "text" in rawFinal
           ? rawFinal.text
-          : undefined) ?? "",
+          : undefined) ?? ""
       ).trim();
       const segmentId = this.currentSegmentId;
       const previousSegmentId = this.previousSegmentId;

packages/server/src/server/speech/providers/local/sherpa/sherpa-stt.ts

@@ -165,10 +165,10 @@ export class SherpaOnnxSTT implements SpeechToTextProvider {
       }
 
       const rawResult = this.engine.recognizer.getResult(stream);
-      const text = String(
+      const text = (
         (typeof rawResult === "object" && rawResult && "text" in rawResult
           ? rawResult.text
-          : undefined) ?? "",
+          : undefined) ?? ""
       ).trim();
       const duration = Date.now() - start;
       this.logger.debug({ duration, textLength: text.length }, "Sherpa transcription complete");

packages/server/src/server/worktree-session.ts

@@ -662,7 +662,7 @@ export async function runWorktreeSetupInBackground(
   let setupResults: WorktreeSetupCommandResult[] = [];
   let setupStarted = false;
   const progressAccumulator = createWorktreeSetupProgressAccumulator();
-  const workspaceId = String(options.workspaceId);
+  const workspaceId = options.workspaceId;
 
   const emitSetupProgress = (status: "running" | "completed" | "failed", error: string | null) => {
     const snapshot: WorkspaceSetupSnapshot = {

packages/server/src/utils/process-tree.ts

@@ -75,7 +75,7 @@ export function signalProcessTree(
     }
 
     try {
-      (options.kill ?? process.kill)(-pid, signal);
+      (options.kill ?? process.kill.bind(process))(-pid, signal);
       return;
     } catch {
       // Fall back to the direct child when no separate process group exists.