PrefectHQ/prefect 3.6.30.dev3 on GitHub

What's Changed

Add dbt Cloud asset materializations by @devin-ai-integration[bot] in #21763
feat: inline-block-placeholder-substitution by @hemantmm in #21777
Render mermaid.js diagrams in markdown blocks (ui-v2) by @devin-ai-integration[bot] in #21793

perf(server): eliminate O(N²) checksum scan in read_block_schemas by @VittoriaLanzo in #21754
Fix race condition in GitRepository.pull_code() with file-based locking by @devin-ai-integration[bot] in #21388
Add zombie flow detection trigger regression test by @devin-ai-integration[bot] in #21802

fix(tests): avoid run_coro_as_sync deadlock in wait futures test by @devin-ai-integration[bot] in #21766
fix(tests): widen wiggle room for test_flow_run_lateness_when_scheduled by @devin-ai-integration[bot] in #21781
fix(tests): widen flow timeout in test_timeout_concurrency_slot_released to avoid pre-yield cancellation by @devin-ai-integration[bot] in #21788

docs: document integration settings pattern (PrefectBaseSettings + env vars) in AGENTS.md by @github-actions[bot] in #21773
Add per-browser UI version switcher by @desertaxle in #21706
docs: document dual UI bundle serving model and cookie routing in server AGENTS.md by @github-actions[bot] in #21778
Add server default result storage config surface by @zzstoatzz in #21532
docs: document Configuration key-value pattern for singleton server settings by @github-actions[bot] in #21779
Add isolated workspace resolver for flow run setup by @desertaxle in #21699
docs: document workspace resolver subprocess contract and run_steps observer pattern by @github-actions[bot] in #21790
docs: document block_schemas checksum-index threading invariant in server AGENTS.md by @github-actions[bot] in #21785
docs: document GitRepository file-locking invariant in runner AGENTS.md by @github-actions[bot] in #21795
Route flow-run execute through workspace resolver by @desertaxle in #21796
docs: document WorkspaceResolvingEngineCommandStarter and resolve_flow invariant in runner AGENTS.md by @github-actions[bot] in #21798
docs: document heartbeat-thread timeout pitfall for concurrency+timeout tests by @github-actions[bot] in #21789

Full Changelog: 3.6.30.dev2...3.6.30.dev3