fix(rustbinarylocator): support resolving platform-suffixed local Rust binaries

ts/classes.rustbinarylocator.ts

@@ -81,11 +81,18 @@ export class RustBinaryLocator {
       plugins.path.resolve(process.cwd(), `rust/target/release/${binaryName}`),
       plugins.path.resolve(process.cwd(), `rust/target/debug/${binaryName}`),
     ];
+    const platformSuffix = this.getPlatformSuffix();
     for (const localPath of localPaths) {
       if (await this.isExecutable(localPath)) {
         this.logger.log('info', `Binary found at local path: ${localPath}`);
         return localPath;
       }
+      // Also try with platform suffix (tsrust convention: binaryName_linux_amd64)
+      const suffixedPath = `${localPath}_${platformSuffix}`;
+      if (await this.isExecutable(suffixedPath)) {
+        this.logger.log('info', `Binary found at local path (platform-suffixed): ${suffixedPath}`);
+        return suffixedPath;
+      }
     }
 
     // 5. System PATH
@@ -137,6 +144,14 @@ export class RustBinaryLocator {
     }
   }
 
+  private getPlatformSuffix(): string {
+    const archMap: Record<string, string> = { x64: 'amd64', arm64: 'arm64' };
+    const platformMap: Record<string, string> = { linux: 'linux', darwin: 'darwin', win32: 'windows' };
+    const platform = platformMap[process.platform] || process.platform;
+    const arch = archMap[process.arch] || process.arch;
+    return `${platform}_${arch}`;
+  }
+
   private async findInPath(binaryName: string): Promise<string | null> {
     const pathDirs = (process.env.PATH || '').split(plugins.path.delimiter);
     for (const dir of pathDirs) {