fix(coding-agent): Clean up Path Handling (#4873)

packages/coding-agent/src/core/agent-session-runtime.ts

@@ -1,5 +1,6 @@
 import { copyFileSync, existsSync, mkdirSync } from "node:fs";
 import { basename, join, resolve } from "node:path";
+import { resolvePath } from "../utils/paths.ts";
 import type { AgentSession } from "./agent-session.ts";
 import type { AgentSessionRuntimeDiagnostic, AgentSessionServices } from "./agent-session-services.ts";
 import type { ReplacedSessionContext, SessionShutdownEvent, SessionStartEvent } from "./extensions/index.ts";
@@ -337,7 +338,7 @@ export class AgentSessionRuntime {
 	 * @throws {MissingSessionCwdError} When the imported session cwd cannot be resolved and no override is provided.
 	 */
 	async importFromJsonl(inputPath: string, cwdOverride?: string): Promise<{ cancelled: boolean }> {
-		const resolvedPath = resolve(inputPath);
+		const resolvedPath = resolvePath(inputPath);
 		if (!existsSync(resolvedPath)) {
 			throw new SessionImportFileNotFoundError(resolvedPath);
 		}