initial devcontainer setup

.devcontainer/snap_db.sh

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+#!/bin/bash
+
+# Ensure the .snapshots directory exists
+mkdir -p "$PROJECT_ROOT/.snapshots"
+
+# Generate the base filename with timestamp
+base_filename="$PROJECT_ROOT/.snapshots/snapshot_$(date +%Y%m%d_%H%M%S)"
+
+# Initialize an empty string for sanitized arguments
+sanitized_args=""
+
+# Loop through all arguments
+for arg in "$@"; do
+    # Sanitize the argument: remove spaces and special characters
+    sanitized=$(echo "$arg" | tr -cd '[:alnum:]_-')
+    sanitized_args="${sanitized_args}_${sanitized}"
+done
+
+# Remove leading underscore if present
+sanitized_args=${sanitized_args#_}
+
+# Create the final filename
+if [ -n "$sanitized_args" ]; then
+    filename="${base_filename}_${sanitized_args}.sql"
+else
+    filename="${base_filename}.sql"
+fi
+
+# Run pg_dump and save to the generated filename
+pg_dump --no-tablespaces ${PGDATABASE} -f "$filename"
+
+# Print the filename that was written
+echo "Snapshot saved to: $filename"