fix: build tool from script directory (correct go.mod context)

deploy.sh

@@ -37,6 +37,7 @@ else
 fi
 
 # --- Common: pull + build ---
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 cd "$REPO_DIR"
 echo "[1/6] Pulling latest code..."
 git pull
@@ -45,15 +46,10 @@ echo "[2/6] Building binary and helper tool..."
 export PATH=$PATH:/usr/local/go/bin
 go build -o "$BINARY_NAME" .
 
+# Build helper tool from script directory (has correct go.mod with all deps)
 TOOL_BIN="/tmp/nextwks-tool"
-TOOL_SRC=""
-for TRY_DIR in "$REPO_DIR/tools/nextwks-tool" "$(dirname $0)/tools/nextwks-tool"; do
-    if [ -d "$TRY_DIR" ]; then
-        TOOL_SRC="$TRY_DIR"
-        break
-    fi
-done
-if [ -n "$TOOL_SRC" ]; then
+TOOL_SRC="$SCRIPT_DIR/tools/nextwks-tool"
+if [ -d "$TOOL_SRC" ]; then
     cd "$TOOL_SRC"
     go build -o "$TOOL_BIN" . 2>&1 && echo "[OK] Helper tool built" || echo "[WARN] Helper tool build failed"
     cd "$REPO_DIR"