feat: Obsidian integration via cli scripts

scripts/obsidian/cli.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+WORKSPACE_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+VAULT_DIR="${AIW_MEMORY_VAULT_DIR:-${AIW_OBSIDIAN_VAULT_DIR:-$WORKSPACE_ROOT/vault}}"
+
+if ! command -v obsidian >/dev/null 2>&1; then
+  echo "obsidian CLI is not installed or not in PATH" >&2
+  exit 127
+fi
+
+if [[ ! -d "$VAULT_DIR" ]]; then
+  echo "vault directory not found: $VAULT_DIR" >&2
+  exit 1
+fi
+
+cd "$VAULT_DIR"
+exec obsidian "$@"