Add configurable worktree target path and session run diagnostics

tests/config.test.ts

@@ -104,3 +104,26 @@ test("resolveOpenAiApiKey prefers CODEX_API_KEY in auto mode", () => {
 
   assert.equal(resolveOpenAiApiKey(config.provider), "codex-key");
 });
+
+test("normalizes anthropic-prefixed CLAUDE_MODEL values", () => {
+  const config = loadConfig({
+    CLAUDE_MODEL: "anthropic/claude-sonnet-4-6",
+  });
+
+  assert.equal(config.provider.claudeModel, "claude-sonnet-4-6");
+});
+
+test("normalizes AGENT_WORKTREE_TARGET_PATH", () => {
+  const config = loadConfig({
+    AGENT_WORKTREE_TARGET_PATH: "./src/agents/",
+  });
+
+  assert.equal(config.provisioning.gitWorktree.targetPath, "src/agents");
+});
+
+test("validates AGENT_WORKTREE_TARGET_PATH against parent traversal", () => {
+  assert.throws(
+    () => loadConfig({ AGENT_WORKTREE_TARGET_PATH: "../secrets" }),
+    /must not contain "\.\." path segments/,
+  );
+});