Add Tesseract OCR support for PHP Runtime Generation 2 parity

[AaronFeledy]

Summary

Pantheon announced Tesseract OCR support on PHP Runtime Generation 2 (Feb 11, 2026). Tesseract can be used alongside Apache Tika for extracting text from images and scanned documents. Since Gen 1 is being removed in April 2026, all sites will be on Gen 2 soon.

Lando's Pantheon appserver images currently include Tika but not Tesseract, creating a dev/prod parity gap for sites that rely on OCR.

Proposed Approach

1. Add tesseract-ocr to the Dockerfiles — it's a standard apt package. Add it to the apt-get install block in each PHP-FPM Dockerfile (e.g. dockerfiles/8.x-fpm/Dockerfile):

   apt-get install -y openjdk-17-jdk tesseract-ocr

2. Add a lando tesseract tooling command — like the existing Tika tooling, add a convenience command so users can run lando tesseract directly.

References

• Pantheon release note: https://docs.pantheon.io/release-notes/2026/02/tesseract-ocr-gen2
• PHP Runtime Gen 2 docs: https://docs.pantheon.io/php-runtime-generation-2
• Tesseract OCR: https://github.com/tesseract-ocr/tesseract
• Related: Incorrect Tika 3 jar URL in utils.js #318 (Tika 3 URL fix)