chore: restore resources/ fallback logic for JAR resolution

The reviewer asked to remove the bundled JAR file, not the code
that looks for it. The fallback paths are still valid if a JAR
is placed there manually or by future tooling.

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

Author: mohamedashrraf222

codeflash/languages/java/build_tool_strategy.py

@@ -60,6 +60,10 @@ def find_runtime_jar(self) -> Path | None:
         Subclasses should override to prepend tool-specific cache paths
         and fall back to super().find_runtime_jar().
         """
+        resources_jar = Path(__file__).parent / "resources" / _RUNTIME_JAR_NAME
+        if resources_jar.exists():
+            return resources_jar
+
         dev_jar_maven = _JAVA_RUNTIME_DIR / "target" / _RUNTIME_JAR_NAME
         if dev_jar_maven.exists():
             return dev_jar_maven

codeflash/languages/java/comparator.py

@@ -68,6 +68,11 @@ def _find_comparator_jar(project_root: Path | None = None) -> Path | None:
         if m2_jar.exists():
             return m2_jar
 
+    # Check bundled JAR in package resources
+    resources_jar = Path(__file__).parent / "resources" / CODEFLASH_RUNTIME_JAR_NAME
+    if resources_jar.exists():
+        return resources_jar
+
     return None
 
 

codeflash/languages/java/line_profiler.py

@@ -584,6 +584,11 @@ def find_agent_jar() -> Path | None:
     if m2_jar.exists():
         return m2_jar
 
+    # Check bundled JAR in package resources
+    resources_jar = Path(__file__).parent / "resources" / AGENT_JAR_NAME
+    if resources_jar.exists():
+        return resources_jar
+
     # Check development build directory
     dev_jar = Path(__file__).parent.parent.parent.parent / "codeflash-java-runtime" / "target" / AGENT_JAR_NAME
     if dev_jar.exists():