feat: Implement Mattermost sync functionality and enhance workspace context management

scripts/mattermost/bootstrap.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+VENV_DIR="$SCRIPT_DIR/.venv"
+PYTHON_BIN="${PYTHON_BIN:-python3}"
+
+if ! command -v "$PYTHON_BIN" >/dev/null 2>&1; then
+  echo "Python interpreter not found: $PYTHON_BIN" >&2
+  exit 1
+fi
+
+if [[ ! -d "$VENV_DIR" ]]; then
+  "$PYTHON_BIN" -m venv "$VENV_DIR"
+fi
+
+if [[ ! -f "$SCRIPT_DIR/.env" ]]; then
+  cp "$SCRIPT_DIR/.env.example" "$SCRIPT_DIR/.env"
+  echo "Created $SCRIPT_DIR/.env from template. Fill in secrets before syncing."
+else
+  echo "Using existing $SCRIPT_DIR/.env"
+fi
+
+echo
+echo "Bootstrap complete."
+echo "Next steps:"
+echo "1. Review $SCRIPT_DIR/.env"
+echo "2. Run: bash scripts/mattermost/sync.sh"