feat: Add IndexNow submission and sitemap updates

- Add IndexNow submit script + state tracking
- Update deploy script to notify IndexNow after healthy deploy
- Publish IndexNow verification file in public
- Update sitemaps and add env placeholders
- Pass analytics/ads/IndexNow env vars into frontend build

frontend/Dockerfile

@@ -3,6 +3,44 @@ FROM node:20-alpine AS build
 
 WORKDIR /app
 
+ARG VITE_GA_MEASUREMENT_ID
+ARG VITE_PLAUSIBLE_DOMAIN
+ARG VITE_PLAUSIBLE_SRC
+ARG VITE_GOOGLE_SITE_VERIFICATION
+ARG VITE_ADSENSE_CLIENT_ID
+ARG VITE_ADSENSE_SLOT_HOME_TOP
+ARG VITE_ADSENSE_SLOT_HOME_BOTTOM
+ARG VITE_ADSENSE_SLOT_TOP_BANNER
+ARG VITE_ADSENSE_SLOT_BOTTOM_BANNER
+ARG VITE_FEATURE_EDITOR
+ARG VITE_FEATURE_OCR
+ARG VITE_FEATURE_REMOVEBG
+ARG VITE_SITE_DOMAIN
+ARG VITE_SENTRY_DSN
+ARG VITE_CLARITY_PROJECT_ID
+ARG INDEXNOW_KEY
+ARG INDEXNOW_ENDPOINT
+ARG INDEXNOW_STRICT
+
+ENV VITE_GA_MEASUREMENT_ID=$VITE_GA_MEASUREMENT_ID \
+	VITE_PLAUSIBLE_DOMAIN=$VITE_PLAUSIBLE_DOMAIN \
+	VITE_PLAUSIBLE_SRC=$VITE_PLAUSIBLE_SRC \
+	VITE_GOOGLE_SITE_VERIFICATION=$VITE_GOOGLE_SITE_VERIFICATION \
+	VITE_ADSENSE_CLIENT_ID=$VITE_ADSENSE_CLIENT_ID \
+	VITE_ADSENSE_SLOT_HOME_TOP=$VITE_ADSENSE_SLOT_HOME_TOP \
+	VITE_ADSENSE_SLOT_HOME_BOTTOM=$VITE_ADSENSE_SLOT_HOME_BOTTOM \
+	VITE_ADSENSE_SLOT_TOP_BANNER=$VITE_ADSENSE_SLOT_TOP_BANNER \
+	VITE_ADSENSE_SLOT_BOTTOM_BANNER=$VITE_ADSENSE_SLOT_BOTTOM_BANNER \
+	VITE_FEATURE_EDITOR=$VITE_FEATURE_EDITOR \
+	VITE_FEATURE_OCR=$VITE_FEATURE_OCR \
+	VITE_FEATURE_REMOVEBG=$VITE_FEATURE_REMOVEBG \
+	VITE_SITE_DOMAIN=$VITE_SITE_DOMAIN \
+	VITE_SENTRY_DSN=$VITE_SENTRY_DSN \
+	VITE_CLARITY_PROJECT_ID=$VITE_CLARITY_PROJECT_ID \
+	INDEXNOW_KEY=$INDEXNOW_KEY \
+	INDEXNOW_ENDPOINT=$INDEXNOW_ENDPOINT \
+	INDEXNOW_STRICT=$INDEXNOW_STRICT
+
 # Install dependencies
 COPY package.json ./
 RUN npm install