fix(renderer): calibrate invisible overlay metrics and hover mapping

scripts/dev-watch.sh

@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+cd "$ROOT_DIR"
+
+electron_args=("$@")
+if [[ ${#electron_args[@]} -eq 0 ]]; then
+  electron_args=(--start --dev)
+fi
+
+if ! command -v bun >/dev/null 2>&1; then
+  echo "[ERROR] bun not found in PATH" >&2
+  exit 1
+fi
+
+TS_WATCH_PID=""
+RENDER_WATCH_PID=""
+
+cleanup() {
+  local pids=("$TS_WATCH_PID" "$RENDER_WATCH_PID")
+  for pid in "${pids[@]}"; do
+    if [[ -n "$pid" ]] && kill -0 "$pid" 2>/dev/null; then
+      kill "$pid" 2>/dev/null || true
+    fi
+  done
+}
+
+trap cleanup EXIT INT TERM
+
+sync_renderer_assets() {
+  mkdir -p dist/renderer
+  cp src/renderer/index.html src/renderer/style.css dist/renderer/
+  mkdir -p dist/renderer/fonts
+  cp -R src/renderer/fonts/. dist/renderer/fonts/
+}
+
+echo "[INFO] Syncing renderer static assets"
+sync_renderer_assets
+
+echo "[INFO] Running initial compile"
+bun run tsc
+bun run build:renderer
+
+echo "[INFO] Starting TypeScript watch"
+bun run tsc --watch --preserveWatchOutput &
+TS_WATCH_PID=$!
+
+echo "[INFO] Starting renderer watch"
+bunx esbuild src/renderer/renderer.ts \
+  --bundle \
+  --platform=browser \
+  --format=esm \
+  --target=es2022 \
+  --outfile=dist/renderer/renderer.js \
+  --sourcemap \
+  --watch &
+RENDER_WATCH_PID=$!
+
+echo "[INFO] Launching Electron with args: ${electron_args[*]}"
+bun run electron . "${electron_args[@]}"