fix: include toolName in tool_result transcript entries for Pi adapter

When tool_result entries arrive without a matching tool_call, the transcript
was showing generic 'tool' as the name. Now pl-local parses toolName from
tool_execution_end events and passes it through, so the UI can display
the actual tool name (e.g., 'bash', 'Read', 'Ls') instead of 'tool'.

packages/adapter-utils/src/types.ts

@@ -246,7 +246,7 @@ export type TranscriptEntry =
   | { kind: "thinking"; ts: string; text: string; delta?: boolean }
   | { kind: "user"; ts: string; text: string }
   | { kind: "tool_call"; ts: string; name: string; input: unknown; toolUseId?: string }
-  | { kind: "tool_result"; ts: string; toolUseId: string; content: string; isError: boolean }
+  | { kind: "tool_result"; ts: string; toolUseId: string; toolName?: string; content: string; isError: boolean }
   | { kind: "init"; ts: string; model: string; sessionId: string }
   | { kind: "result"; ts: string; text: string; inputTokens: number; outputTokens: number; cachedTokens: number; costUsd: number; subtype: string; isError: boolean; errors: string[] }
   | { kind: "stderr"; ts: string; text: string }

packages/adapters/pi-local/src/ui/parse-stdout.ts

@@ -130,6 +130,7 @@ export function parsePiStdoutLine(line: string, ts: string): TranscriptEntry[] {
 
   if (type === "tool_execution_end") {
     const toolCallId = asString(parsed.toolCallId);
+    const toolName = asString(parsed.toolName);
     const result = parsed.result;
     const isError = parsed.isError === true;
     const contentStr = typeof result === "string" ? result : JSON.stringify(result);
@@ -138,6 +139,7 @@ export function parsePiStdoutLine(line: string, ts: string): TranscriptEntry[] {
       kind: "tool_result",
       ts,
       toolUseId: toolCallId || "unknown",
+      toolName,
       content: contentStr,
       isError,
     }];

ui/src/components/transcript/RunTranscriptView.tsx

@@ -400,7 +400,7 @@ export function normalizeTranscript(entries: TranscriptEntry[], streaming: boole
           type: "tool",
           ts: entry.ts,
           endTs: entry.ts,
-          name: "tool",
+          name: entry.toolName ?? "tool",
           toolUseId: entry.toolUseId,
           input: null,
           result: entry.content,