chore: delete legacy functional-tests directory (STR-2085) (#1581)

* chore: delete legacy functional-tests directory (STR-2085)

Remove the entire functional-tests/ directory. All valuable tests have been
migrated to functional-tests-new/ or their invariants tracked in JIRA/Notion.

Sync tests: added test_sync_genesis to functional-tests-new. Fullnode lag
restart test deferred — fullnode sync not yet implemented in new strata binary
(tracked in STR-2091).

Also:
- Fix bug in strata_seq_fullnode.py: pass genesis_l1.blk.height (int) not
  GenesisL1View object to create_node()
- Delete .github/workflows/functional.yml (legacy test workflow)
- Update test-coverage.yml, main-eest.yml, dependabot.yml, CODEOWNERS
- Update AGENTS.md, README.md, CONTRIBUTING.md references

* chore: rename functional-tests-new/ to functional-tests/ (STR-2085)

Now that the legacy functional-tests/ directory is deleted, drop the
-new suffix. Updates all references across CI workflows, justfile,
CODEOWNERS, Dockerfile, docs, and .dockerignore.

* chore: exclude functional-tests/_dd from taplo formatting

Test run data directory contains generated TOML files that should not
be linted.

* chore: clean up stray references after functional-tests rename (STR-2085)

- CODEOWNERS: drop fn_*.py and constants.py patterns that match nothing
  in the new layout.
- dependabot.yml: restore the uv ecosystem entry for functional-tests/.
  It was dropped with the legacy delete, but the path is unchanged after
  the rename so the new framework still needs Python dependency updates.
- functional.yml: filter the coverage-instrumented cargo build to the
  binaries the new tests actually use, and update the which assertion
  from strata-client to strata.
- FUNCTIONAL_TEST_MIGRATION_STATUS.md: delete the migration tracking
  doc now that the legacy tree is gone.

* fix: move btcio tests missed during functional-tests rename (STR-2085)

The btcio tests (added by PR #1451) were added to main after the rename
commit was written. The rebase didn't capture them, leaving orphaned
tracked files under functional-tests-new/tests/btcio/.

---------

Co-authored-by: Jose Storopoli <jose@storopoli.com>

Author: voidash

.dockerignore

@@ -4,7 +4,6 @@
 .github/
 .ruff_cache/
 .vscode/
-functional-tests/
 docker/.data
 
 # Ignore build artifacts and cache
@@ -14,7 +13,7 @@ target/*
 
 # Ignore test-related files and directories
 test/
-functional-tests-new/_dd/
+functional-tests/_dd/
 **/_dd/
 
 # Ignore cache, temporary, and virtual environment files

.github/CODEOWNERS

@@ -75,18 +75,9 @@ bin/strata/ @alpenlabs/bin @alpenlabs/chain-core
 
 # Functional tests
 functional-tests/ @alpenlabs/python # catch all
-functional-tests/fn_*.py @alpenlabs/python @alpenlabs/ci
-functional-tests/constants.py @alpenlabs/python @alpenlabs/ci
 functional-tests/entry.py @alpenlabs/python @alpenlabs/ci
 functional-tests/uv.lock @alpenlabs/python
 
-# Functional tests new
-functional-tests-new/ @alpenlabs/python # catch all
-functional-tests-new/fn_*.py @alpenlabs/python @alpenlabs/ci
-functional-tests-new/constants.py @alpenlabs/python @alpenlabs/ci
-functional-tests-new/entry.py @alpenlabs/python @alpenlabs/ci
-functional-tests-new/uv.lock @alpenlabs/python
-
 
 # Docker/Containers
 **/Docker* @alpenlabs/docker