v2.6.0

What's Changed

• docs: write down the BBA Server API contract by @Rick-Wilson in #18
• Add EPBot thread-safety test harness by @Rick-Wilson in #30
• bba-server: reject an unrecognized dealer or vulnerability by @Rick-Wilson in #32
• bba-server: warn when a scenario does not resolve by @Rick-Wilson in #33
• bba-server: read scenario cards from dlr files by @Rick-Wilson in #34
• bba-server 2.3.0 by @Rick-Wilson in #35

Full Changelog: v2.5.0...v2.6.0