Add conda environment configuration

[Copilot]

Adds environment.yml for reproducible conda-based build and deployment setup.

Configuration

• Environment name: treebase
• Channels: conda-forge, bioconda (excludes defaults)
• Dependencies:
  • openjdk=17 (Java 17 LTS per BUILDING.md requirements)
  • tomcat
  • maven
  • postgresql

Users can create the environment with:

conda env create -f environment.yml
conda activate treebase

Original prompt

Create an environment.yml file in the root of the repo that sets up a conda environment for building and deploying treebase. Requirements:

• don't use defaults channel, only conda-forge and bioconda
• name the environment treebase
• include the right (openjdk) Java version
• include tomcat
• include maven
• include postgres

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