feat: Better docs website

[Lms24]

With some help from cursor, this PR adds a new docs website

• Nice looking website
• Cmd+K search for attributes and text
• Create new attribute via UI
  • Creates a new file in GH from which users can create a PR.
  • Gonna add a workflow to run generation and commit the generated stuff automatically when adding a label to a PR.
• Powered by Astro (static pages) and Svelte (islands for search and attribute creation) 🧡

Screen.Recording.2026-01-12.at.12.35.52.mp4

Happy to drop this but I wanted to add proper search and this is what I ended up with 😅

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

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New Features ✨

Attributes

• Add sentry.profiler_id attribute by Lms24 in #242
• Add attribute gen_ai.response.time_to_first_token by constantinius in #227
• Add sentry.status_code attribute by mjq in #223
• Backfill db.system attribute by mjq in #224
• Add sentry.category attribute by mjq in #218
• Add sentry.normalized_db_query.hash by Ahmed-Labs in #200

Other

• (ai) Add input tokens cache write by shellmayr in #217
• (gen_ai) Add new Gen AI attributes by obostjancic in #221

• Better docs website by Lms24 in #238

• Add page listing all attributes by Lms24 in #207

Bug Fixes 🐛

Attributes

• Migrating several numeric fields to pii=maybe by constantinius in #228
• Improve gen_ai.operation.name description by obostjancic in #225

Other

• (db) Clarify db.query.text and db.query.summary attributes by Lms24 in #208

Internal Changes 🔧

Attributes

• Update sentry.span.source with known values by Lms24 in #214
• Add legacy attribute definitions for transaction spans by Ahmed-Labs in #212
• Normalize deprecated db attribute names by Ahmed-Labs in #199

Deps Dev

• Bump tar from 7.5.4 to 7.5.7 by dependabot in #239
• Bump tar from 7.5.3 to 7.5.4 by dependabot in #226
• Bump tar from 7.4.3 to 7.5.3 by dependabot in #220

Repo

• Add Claude Code settings with basic permissions by philipphofmann in #222
• Unstale yarn lock by Lms24 in #215

Other

• (ai) Remove gen_ai_usage_total_cost attribute by vgrozdanic in #206
• (lint) Don't lint Claude's config files by mjq in #219
• (release) Switch from action-prepare-release to Craft by BYK in #216
• Add statuses permission to Changelog Preview by lcian in #232

Other

• Add more CODEOWNERS by cleptric in #240
• Add @getsentry/ingest to CODEOWNERS by cleptric in #236
• Update CODEOWNERS to change global ownership by cleptric in #230

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[cleptric]

Good to go, we will iterate a bit on the design to make it simpler.

[Lms24]

• one more feature: one text file with all attributes for LLMs

[Lms24]

I made a bunch of changes from the review as well as some things I noticed:

• defluffled the landing and attributes page
• removed attribute details page
• unified attributes and attributes/:category pages
• fixed a very suspiciously hidden dynamic import for the search index. We still have a dynamic import there but that's fine
• ensured that the search UI's html is sanitized via DOMPurify. Despite there being little thread for XSS due to pagefind already sanitizing, I think we can be extra safe here and use a proper sanitizer library as well.
• Switched to Svelte 5 Runes instead of old reactive syntax (via docs: Use proper svelte 5 syntax in search modal #244)
• unified favicon and sentry logo glyph
• added MIT licence
• fixed some a11y leftovers

Will follow up with

• theme changes
• toggle-able dark/light mode once we merged this initial version
• one text file with all attributes for LLMs