fix(frontend): hardcode Simple Analytics for javachat.ai domain

[WilliamAGH]

Simple Analytics traffic was being sent without an explicit production hostname, which can cause events to be attributed to the wrong site identity in the dashboard. This commit makes analytics wiring deterministic by hardcoding the canonical javachat.ai hostname in the injected script and noscript pixel.

It also switches to explicit HTML tag descriptors for the injection logic and keeps analytics disabled in development mode to avoid polluting production data during local testing.

• Replace dynamic script filename logic with a fixed production script URL
• Inject data-hostname="javachat.ai" on the analytics script tag
• Add a hostname-qualified noscript pixel URL for non-JS tracking
• Move analytics injection into a dedicated buildSimpleAnalyticsTags() helper
• Use Vite HtmlTagDescriptor typing for safer transform output

[coderabbitai]

📝 Walkthrough

Summary by CodeRabbit

• Chores
  • Centralized build-time analytics tag generation for production builds.
  • Analytics now load conditionally—only when the site is served from the configured production hostname.
  • Production-only fallback tracking added for environments without JavaScript.
  • Development/local builds omit analytics to simplify testing and avoid tracking during development.

Walkthrough

Extracts and centralizes Simple Analytics tag generation in frontend/vite.config.ts: adds typed HtmlTagDescriptor usage, constants for analytics configuration, and a buildSimpleAnalyticsTags(mode: string) helper that injects a runtime-guarded script and a noscript image into the HTML body for production only.

Changes

Cohort / File(s)	Summary
Vite config — analytics builder frontend/vite.config.ts	Added HtmlTagDescriptor import; introduced constants SIMPLE_ANALYTICS_QUEUE_ORIGIN, SIMPLE_ANALYTICS_HOSTNAME, SIMPLE_ANALYTICS_SCRIPT_URL, and a runtime guard script constant. Added buildSimpleAnalyticsTags(mode: string): HtmlTagDescriptor[] returning production-only script (runtime-guarded) and noscript image tags; transformIndexHtml now uses this builder and injects tags into the body.
Metadata / project files manifest_file, package.json	Minor edits present (lines changed: +47/-13); likely metadata or dependency adjustments associated with the change set.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

✨🛠️ A tiny tracker moved with care,
From inline clutter to a builder's lair.
Guards check the host, prod gets the script,
Dev stays light — the build's well-equipped.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: hardcoding the Simple Analytics hostname for the javachat.ai domain, which is the core purpose of this PR.
Description check	✅ Passed	The description clearly explains the problem (analytics without explicit hostname), the solution (hardcoding javachat.ai), and lists the specific changes made, all directly related to the changeset.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch dev

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[chatgpt-codex-connector]

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[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@frontend/vite.config.ts`:
- Line 24: Update the noscript pixel URL to include the hostname query parameter
so attribution works when referrers are missing: change the construction of the
noScriptImageUrl (currently using SIMPLE_ANALYTICS_QUEUE_ORIGIN) to append
?hostname=... using SIMPLE_ANALYTICS_HOSTNAME so it matches the script's
data-hostname behavior; ensure encoding if needed and that noScriptImageUrl is
used in the noscript img src.