Add PDF text fallback for bill documents

[Smoss]

• Extract embedded text from bill PDFs when DocumentText is missing
• Add backfill tooling and documentation for repairing existing bills

Summary

Add basic pdf parsing as a fallback for when DocumentText is unavailable, per #2081.
This still fails on several PDFs due to lack of text, but works for a large portion.

Checklist

• On the frontend, I've made my strings translate-able.
• If I've added shared components, I've added a storybook story.
• I've made pages responsive and look good on mobile.
• If I've added new Firestore queries, I've added any new required indexes to firestore.indexes.json (Please do not only create indexes through the Firebase Web UI, even though the error messages may reccommend it - indexes created this way may be obliterated by subsequent deploys)

Screenshots

Known issues

If you've run against limitations or caveats, include them here. Include follow-up issues as well.

Steps to test/reproduce

For each feature or bug fix, create a step by step list for how a reviewer can test it out. E.g.:

1. Go to the home page
2. Click on a testimony
3. See that it's loaded with a loading spinner

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Project	Deployment	Actions	Updated (UTC)
maple-dev	Ready	Preview, Comment	May 6, 2026 3:25am