fix: add Java project detection to detect_project_language

The function only checked for Python and JS/TS markers. Java projects
(with pom.xml or build.gradle) always fell through to the PYTHON default.
Added Java detection before TypeScript check since build tool files are
definitive markers, mirroring setup/detector.py logic.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: mohamedashrraf222

codeflash/cli_cmds/init_javascript.py

@@ -87,6 +87,12 @@ def detect_project_language(project_root: Path | None = None) -> ProjectLanguage
     """
     root = project_root or Path.cwd()
 
+    # Java detection (pom.xml or build.gradle is definitive)
+    has_pom = (root / "pom.xml").exists()
+    has_gradle = (root / "build.gradle").exists() or (root / "build.gradle.kts").exists()
+    if has_pom or has_gradle:
+        return ProjectLanguage.JAVA
+
     has_pyproject = (root / "pyproject.toml").exists()
     has_setup_py = (root / "setup.py").exists()
     has_package_json = (root / "package.json").exists()