Reboot 1.6.0

What's Changed

• Upgrade to Bazel 8.7.0 by @rjhuijsman in #144
• Deflake concurrent_transactions_same_state by allowing retries by @rjhuijsman in #152
• bazel: type check against first-party external repositories by @rjhuijsman in #151
• Fix several Maestro test flakes by @rjhuijsman in #153
• Docs overhaul by @rjhuijsman in #154
• Dev release fixes by @onelxj in #161
• Give field-less pydantic errors their type in TypeScript by @onelxj in #163
• Add reboot.bdd: write Reboot tests in Gherkin with pytest-bdd by @benh in #149
• Update Envoy, Istio, and various CLIs by @rjhuijsman in #160
• Resolve transaction deadlocks with wait-die on transaction age by @benh in #166
• Pubsub: let a queue subscribe to the same topic more than once by @rjhuijsman in #168
• state_managers: shield a transaction's outcome from its waiters by @rjhuijsman in #158
• CI: deflake Check Code Style by moving it to Depot by @rjhuijsman in #167
• Let the graph's cards be dragged and its boxes resized by @rileysdev in #175
• Pin anthropic SDK for pydantic agent by @onelxj in #172
• Dashboard fixups by @rileysdev in #176
• reboot/server: skip an already-committed participant in RecoverTransactions by @rjhuijsman in #174
• Dashboard: find the agents an application runs, and draw them by @benh in #169
• Prepare 1.6.0 for a release by @onelxj in #178
• Update lockfiles for 1.6.0 by @onelxj in #181

Full Changelog: 1.5.0...1.6.0