fix: pass pathToClaudeCodeExecutable to SDK query options

SDK fallback uses import.meta.url to find claude binary, which is
undefined in CJS bundles (esbuild replaces import.meta with {}).
Now explicitly find and pass claude path via `which claude`.

Also: improved error logging in init.ts (stack trace on scan failure).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: George-iam

src/tools/init.ts

@@ -174,7 +174,10 @@ export async function initProjectWithLLM(projectPath: string, opts?: {
   log(`  [${projectName}] Scanners complete, processing results...`);
   for (const settled of scanners) {
     if (settled.status === "rejected") {
-      errors.push(`LLM scan failed: ${settled.reason?.message ?? settled.reason}`);
+      const err = settled.reason;
+      const msg = err?.message ?? String(err);
+      const stack = err?.stack ? `\n${err.stack.split("\n").slice(0, 3).join("\n")}` : "";
+      errors.push(`LLM scan failed: ${msg}${stack}`);
       continue;
     }
     const val = settled.value;

src/utils/agent-options.ts

@@ -2,8 +2,22 @@
  * Shared agent query options builder for LLM scanner agents.
  */
 
+import { execSync } from "node:child_process";
+
 type Options = import("@anthropic-ai/claude-agent-sdk").Options;
 
+/** Find claude binary path. Cached after first lookup. */
+let _claudePath: string | undefined;
+function findClaudePath(): string | undefined {
+  if (_claudePath !== undefined) return _claudePath || undefined;
+  try {
+    _claudePath = execSync("which claude", { encoding: "utf-8" }).trim();
+  } catch {
+    _claudePath = "";
+  }
+  return _claudePath || undefined;
+}
+
 export type AgentRole = "scanner" | "tester" | "reviewer" | "engineer" | "architect" | "auditor";
 
 const ROLE_TOOLS: Record<AgentRole, { allowed: string[]; disallowed: string[] }> = {
@@ -41,6 +55,8 @@ export function buildAgentQueryOptions(base: {
 }, role: AgentRole): Options {
   const tools = ROLE_TOOLS[role];
 
+  const claudePath = findClaudePath();
+
   return {
     cwd: base.cwd,
     model: base.model,
@@ -49,6 +65,7 @@ export function buildAgentQueryOptions(base: {
       : { type: "preset" as const, preset: "claude_code" as const },
     settingSources: ["project"],
     ...(base.maxTurns !== undefined ? { maxTurns: base.maxTurns } : {}),
+    ...(claudePath ? { pathToClaudeCodeExecutable: claudePath } : {}),
     permissionMode: "bypassPermissions",
     allowDangerouslySkipPermissions: true,
     allowedTools: tools.allowed,