Gtm to analytics

[area73]

Summary by CodeRabbit

• New Features

  • Added Google Analytics 4 integration with privacy-focused default settings.

• Chores

  • Removed Google Tag Manager integration across the application.

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[cursor]

PR Summary

Migrates site analytics to GA4 with a lightweight, non-blocking implementation.

• Adds GoogleAnalytics.astro to load GA4 asynchronously when PUBLIC_GA_MEASUREMENT_ID is set; injected via BaseHead.astro
• Removes GTM scripts/noscripts from BlogLayout.astro, BlogPost.astro, [lang]/blog/[...slug].astro, and public/rss/styles.xsl
• Introduces src/types/astro-env.d.ts to type PUBLIC_GA_MEASUREMENT_ID

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[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The changes migrate tracking infrastructure from Google Tag Manager (GTM) to Google Analytics 4 (GA4). GTM references are removed from RSS stylesheet and multiple layout/page files, while a new non-blocking GA4 component is introduced and integrated into the base head template. Type definitions are added to support GA measurement ID configuration.

Changes

Cohort / File(s)	Summary
GTM Removal public/rss/styles.xsl, src/layouts/BlogLayout.astro, src/layouts/BlogPost.astro, src/pages/[lang]/blog/[...slug].astro	Deleted GTM script tags (head) and noscript iframe fallbacks (body) across RSS stylesheet and layout/page components; no replacement logic added
GA4 Integration src/components/GoogleAnalytics.astro, src/components/BaseHead.astro	New GoogleAnalytics component loads GA4 asynchronously with low fetchpriority when PUBLIC_GA_MEASUREMENT_ID env var is configured; component is imported and rendered in BaseHead
Environment Type Definitions src/types/astro-env.d.ts	New TypeScript ambient declaration file defining ImportMetaEnv and ImportMeta interfaces to expose PUBLIC_GA_MEASUREMENT_ID as optional string

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 Out with the GTM, in with GA4's grace,
No more heavyweight trackers cluttering the place,
Async and nimble, the analytics flow,
Non-blocking and light—let the web pages glow! ✨

✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 362f107 and e406eb7.

📒 Files selected for processing (7)

• public/rss/styles.xsl
• src/components/BaseHead.astro
• src/components/GoogleAnalytics.astro
• src/layouts/BlogLayout.astro
• src/layouts/BlogPost.astro
• src/pages/[lang]/blog/[...slug].astro
• src/types/astro-env.d.ts

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