Remove obsolete deployment scripts and testing utilities

- Deleted `strip_compress.sh`, `switch_traffic.sh`, and `validate_deployment_scripts.sh` as they are no longer needed.
- Removed `test_mcp_tools.py` which was used for testing MCP tools.
- Added `Cargo.lock` for the `semchunk-rs` dependency to ensure consistent builds.

Author: jruokola

Cargo.lock

@@ -16,9 +16,9 @@ members = [
     "crates/codegraph-cli",
     "crates/codegraph-napi",
     "crates/core-rag-mcp-server",
-    "scripts",
     "tests/integration"
 ]
+exclude = ["scripts"]
 default-members = [
     "crates/codegraph-core"
 ]