chore(rename): move llama_stack.distribution to llama_stack.core (#2975)

We would like to rename the term `template` to `distribution`. To
prepare for that, this is a precursor.

cc @leseb

llama_stack/distribution/start_stack.sh

@@ -1,134 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright (c) Meta Platforms, Inc. and affiliates.
-# All rights reserved.
-#
-# This source code is licensed under the terms described in the LICENSE file in
-# the root directory of this source tree.
-
-
-TEST_PYPI_VERSION=${TEST_PYPI_VERSION:-}
-PYPI_VERSION=${PYPI_VERSION:-}
-VIRTUAL_ENV=${VIRTUAL_ENV:-}
-
-set -euo pipefail
-
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m' # No Color
-
-error_handler() {
-  echo "Error occurred in script at line: ${1}" >&2
-  exit 1
-}
-
-trap 'error_handler ${LINENO}' ERR
-
-if [ $# -lt 3 ]; then
-  echo "Usage: $0 <env_type> <env_path_or_name> <port> [--config <yaml_config>] [--env KEY=VALUE]..."
-  exit 1
-fi
-
-env_type="$1"
-shift
-
-env_path_or_name="$1"
-container_image="localhost/$env_path_or_name"
-shift
-
-port="$1"
-shift
-
-SCRIPT_DIR=$(dirname "$(readlink -f "$0")")
-source "$SCRIPT_DIR/common.sh"
-
-# Initialize variables
-yaml_config=""
-env_vars=""
-other_args=""
-
-# Process remaining arguments
-while [[ $# -gt 0 ]]; do
-  case "$1" in
-    --config)
-      if [[ -n "$2" ]]; then
-        yaml_config="$2"
-        shift 2
-      else
-        echo -e "${RED}Error: $1 requires a CONFIG argument${NC}" >&2
-        exit 1
-      fi
-      ;;
-    --env)
-      if [[ -n "$2" ]]; then
-        env_vars="$env_vars --env $2"
-        shift 2
-      else
-        echo -e "${RED}Error: --env requires a KEY=VALUE argument${NC}" >&2
-        exit 1
-      fi
-      ;;
-    *)
-      other_args="$other_args $1"
-      shift
-      ;;
-  esac
-done
-
-# Check if yaml_config is required based on env_type
-if [[ "$env_type" == "venv" || "$env_type" == "conda" ]] && [ -z "$yaml_config" ]; then
-  echo -e "${RED}Error: --config is required for venv and conda environments${NC}" >&2
-  exit 1
-fi
-
-PYTHON_BINARY="python"
-case "$env_type" in
-  "venv")
-    if [ -n "$VIRTUAL_ENV" ] && [ "$VIRTUAL_ENV" == "$env_path_or_name" ]; then
-        echo -e "${GREEN}Virtual environment already activated${NC}" >&2
-    else
-        # Activate virtual environment
-        if [ ! -d "$env_path_or_name" ]; then
-            echo -e "${RED}Error: Virtual environment not found at $env_path_or_name${NC}" >&2
-            exit 1
-        fi
-
-        if [ ! -f "$env_path_or_name/bin/activate" ]; then
-            echo -e "${RED}Error: Virtual environment activate binary not found at $env_path_or_name/bin/activate" >&2
-            exit 1
-        fi
-
-        source "$env_path_or_name/bin/activate"
-    fi
-    ;;
-  "conda")
-    if ! is_command_available conda; then
-        echo -e "${RED}Error: conda not found" >&2
-        exit 1
-    fi
-    eval "$(conda shell.bash hook)"
-    conda deactivate && conda activate "$env_path_or_name"
-    PYTHON_BINARY="$CONDA_PREFIX/bin/python"
-    ;;
-  *)
-esac
-
-if [[ "$env_type" == "venv" || "$env_type" == "conda" ]]; then
-    set -x
-
-    if [ -n "$yaml_config" ]; then
-        yaml_config_arg="$yaml_config"
-    else
-        yaml_config_arg=""
-    fi
-
-    $PYTHON_BINARY -m llama_stack.distribution.server.server \
-    $yaml_config_arg \
-    --port "$port" \
-    $env_vars \
-    $other_args
-elif [[ "$env_type" == "container" ]]; then
-    echo -e "${RED}Warning: Llama Stack no longer supports running Containers via the 'llama stack run' command.${NC}"
-    echo -e "Please refer to the documentation for more information: https://llama-stack.readthedocs.io/en/latest/distributions/building_distro.html#llama-stack-build"
-    exit 1
-fi