Feature/remove session context (apache#14)

* Removing session context from ray context and testing against running sql query

* Removing datafusion-python as a rust dependency

* Add in shuffle context for decoding

* Add DF ctx to init

* Resolve proto compilation errors

* Cargo fmt

* Resolve compile warnings

* Move serialization to only on rust side

* Add docker ignore to reduce size of the context sent to daemon

* Update Dockerfile. We shouldn't need venv inside a docker build enivornment. Also since adding the docker ignore, we can just copy in the entire directory that remains.

* Remove stale code

* Set up to pass in an execution plan instead of raw SQL command

* Update example to show dataframe operation

.dockerignore

@@ -0,0 +1,34 @@
+# Ignore the target directory where Rust build artifacts are placed
+/target
+
+# Ignore the local Cargo registry and git db (cached crates)
+/cargo/.git
+/cargo/registry
+
+# Ignore build scripts or binaries
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Ignore backup and swap files
+*.swp
+*.swo
+*.bak
+
+# Ignore any IDE-specific or editor-specific files (e.g., VSCode, IntelliJ, etc.)
+**/.vscode
+**/.idea
+**/.gdb_history
+**/.git
+**/.DS_Store
+
+# Ignore test result files
+/tests/results/
+
+# Ignore unnecessary temporary or system files
+**/node_modules
+*.log
+*.tmp
+*.lock
+!Cargo.lock