AIR CLI Integration: remove requirements file path for config

[riddhibhagwat-db]

Changes & Why

environment.dependencies now accepts only an inline list of packages. The string form (a path to a requirements.yaml file) is rejected at config load, now that inline deps are fully supported (#6077).

Removes the file-reading paths (readRequirementsDependencies, requirementsDoc, requirementsFile) and the file-vs-inline branching in run submit and convert-to-dabs; the dependencies union collapses to a plain list.

Tests

• TestLoadRunConfig_PolymorphicFields: requirements.yaml fails at load with must be a list of packages
• Acceptance rejection case: end-to-end proof the CLI rejects the file-path form with the actionable error message, captured verbatim in output.txt.
• TestRunConfigDependencies: the inline list still decodes and is returned by inlineDependencies(); unset returns false.
• TestLoadRunConfig_FullFeatured: a full config with an inline dependencies: list parses into Dependencies.{set, list} correctly.
• TestBuildSubmitPayloadInlineDependencies: inline deps are carried on environments[].spec.dependencies in the submit payload (empty/nil omit the key).
• Acceptance inline happy path: a real submit uploads only command.sh + training_config.yaml (no requirements.yaml) and the recorded runs/submit body carries the deps inline.
• TestBuildArtifacts_ParametersButNoRequirements: inline deps are not written as an uploaded artifact.
• TestEnvironmentConfigValidate: environment.version is valid only alongside inline deps (the old file-deps branch is gone).
• Full-featured convert test: the convert-to-dabs path folds inline deps + version into the bundle environments[].spec, proving both consumers stay in lockstep on the inline-only path.

Manual Verification:

Rejected:

Accepted:

[eng-dev-ecosystem-bot]

Integration test report

Commit: 7bdbed1

Run: 31816375563

	Env	🟨​KNOWN	🔄​flaky	💚​RECOVERED	🙈​SKIP	✅​pass	🙈​skip	Time
🟨​	aws linux	3		1	4	291	1105	7:37
🟨​	aws windows	3		1	4	293	1103	9:55
🟨​	azure linux	3		1	4	290	1105	10:41
🟨​	azure windows	3	2	1	4	290	1103	9:30
💚​	gcp linux			1	5	291	1105	7:50
💚​	gcp windows			1	5	293	1103	6:37

10 interesting tests: 4 SKIP, 3 KNOWN, 2 flaky, 1 RECOVERED

	Test Name	aws linux	aws windows	azure linux	azure windows	gcp linux	gcp windows
💚​	TestAccept	💚​R	💚​R	💚​R	💚​R	💚​R	💚​R
🙈​	TestAccept/bundle/invariant/no_drift	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/bundle/resources/vector_search_endpoints/drift/recreated_same_name	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/bundle/resources/vector_search_indexes/recreate/embedding_dimension	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🙈​	TestAccept/ssh/connection	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S	🙈​S
🔄​	TestFsCpDirToDirWithOverwriteFlag	✅​p	✅​p	✅​p	🔄​f	✅​p	✅​p
🔄​	TestFsCpDirToDirWithOverwriteFlag/dbfs_to_uc-volumes	✅​p	✅​p	✅​p	🔄​f	✅​p	✅​p
🟨​	TestFetchRepositoryInfoAPI_FromRepo	🟨​K	🟨​K	🟨​K	🟨​K	🙈​S	🙈​S
🟨​	TestFetchRepositoryInfoAPI_FromRepo/root	🟨​K	🟨​K	🟨​K	🟨​K
🟨​	TestFetchRepositoryInfoAPI_FromRepo/subdir	🟨​K	🟨​K	🟨​K	🟨​K

Top 6 slowest tests (at least 2 minutes):

duration	env	testname
8:13	aws windows	TestAccept
6:29	gcp windows	TestAccept
5:56	azure windows	TestAccept
2:58	gcp linux	TestAccept
2:53	azure linux	TestAccept
2:49	aws linux	TestAccept

[vinchenzo-db]

I think this is ok but please have Ben review this one

[ben-hansen-db]

Looks good but let's improve the wording there to be more precise and reference our docs or the help command for what a user should do. Don't mention what was supported previously specifically

[ben-hansen-db]

Just say something like:

environment.dependences must be a list of packages or reference a requirements.txt [link to docs page]. A direct file reference is not supported.

don't mention this was supported previously