Adds a chat_completions route module to litellm-core, mirroring the messages
route, plus Anthropic Messages and Bedrock Converse provider configs. The
per-model `rust: true` opt-in now covers /chat/completions for both providers.
The core accepts an allowlisted subset (text conversations, non-streaming) and
returns CoreError::Unsupported for anything else, so tool calls, multimodal
content and streaming fall back to the Python path transparently.
Resolves LIT-5698
Nine workflow files existed only to make a single call to _test-unit-base.yml
with a different test-path. Adding a shard meant adding a file; changing
anything shared meant editing nine. One matrix caller replaces them, so a shard
is now one entry.
Check names are unchanged, which is the whole constraint. A reusable-workflow
job reports as "<job name> / <inner job name>", so setting `name` to the shard id
alone reproduces today's context strings exactly: the eleven the matrix produces
are eleven of the twenty-three "/ Run tests" contexts the branch ruleset
requires, matched string for string. No ruleset edit is needed and none should
be made for this.
Every matrix entry states its timeouts even where they equal the base defaults.
An absent matrix key renders as an empty string rather than falling back, and an
empty string is not a number, so a partially-specified entry would fail the call.
tests/proxy_unit_tests keeps test-unit-proxy-db.yml. It is already a matrix and
its shard-coverage guard reads that file by name, so folding it in belongs with
generalising that guard into assert_ci_coverage.py rather than here. Its twelve
shards are the remaining required contexts.
test-unit-documentation.yml stays too: it does not call the base workflow.
