[multi-lora][ci] Rename CI to tinker-skyrl-train-backend-gpu

Frame the new CI workflow around the SkyRL-Train Tinker backend rather
than this PR's specific multi-LoRA work — same suite is the right home
for any future Tinker-API-on-Megatron correctness tests we add.

Renames:
  .github/workflows/gpu_skyrl_train_multi_lora_megatron.yaml
    -> .github/workflows/tinker_skyrl_train_backend_gpu.yaml
  ci/anyscale_gpu_ci_multi_lora_megatron.yaml
    -> ci/anyscale_tinker_skyrl_train_backend_gpu.yaml
  ci/gpu_ci_run_multi_lora_megatron.sh
    -> ci/gpu_ci_run_tinker_skyrl_train_backend.sh

And updates the inside of each: workflow name (Tinker-SkyRL-Train-
Backend-GPU), Anyscale job name (tinker-skyrl-train-backend-gpu), job
key (tinker_skyrl_train_backend_gpu_tests), PR label
(run_tinker_skyrl_train_backend_gpu_ci), and the path filters'
self-reference.

Test path stays at tests/tinker/skyrl_train/test_multi_lora_megatron.py
since that's still the file we're invoking.

Author: erictang000

.claude/scheduled_tasks.lock

@@ -0,0 +1 @@
+{"sessionId":"b25eea82-56d5-4bd0-855d-5613a7cecef2","pid":375006,"procStart":"17509491","acquiredAt":1778193474292}

…gpu_skyrl_train_multi_lora_megatron.yaml …lows/tinker_skyrl_train_backend_gpu.yaml.github/workflows/gpu_skyrl_train_multi_lora_megatron.yaml renamed to .github/workflows/tinker_skyrl_train_backend_gpu.yaml .github/workflows/gpu_skyrl_train_multi_lora_megatron.yaml renamed to .github/workflows/tinker_skyrl_train_backend_gpu.yaml

@@ -1,22 +1,21 @@
-name: SkyRL-Train-GPU-Multi-LoRA-Megatron
+name: Tinker-SkyRL-Train-Backend-GPU
 
 on:
   push:
     branches:
       - main
     paths:
-      - 'ci/anyscale_gpu_ci_multi_lora_megatron.yaml'
-      - 'ci/gpu_ci_run_multi_lora_megatron.sh'
-      - 'skyrl/backends/skyrl_train/workers/megatron/adapter_store.py'
-      - 'skyrl/backends/skyrl_train/workers/megatron/megatron_worker.py'
+      - 'ci/anyscale_tinker_skyrl_train_backend_gpu.yaml'
+      - 'ci/gpu_ci_run_tinker_skyrl_train_backend.sh'
+      - 'skyrl/backends/skyrl_train/workers/megatron/**'
       - 'skyrl/backends/skyrl_train/workers/worker_dispatch.py'
       - 'skyrl/backends/skyrl_train_backend.py'
       - 'skyrl/tinker/**'
       - 'tests/tinker/skyrl_train/**'
       - 'pyproject.toml'
       - '!docs/**'
       - '!examples/**'
-      - '.github/workflows/gpu_skyrl_train_multi_lora_megatron.yaml'
+      - '.github/workflows/tinker_skyrl_train_backend_gpu.yaml'
   pull_request_target:
     types: [labeled]
   workflow_dispatch:
@@ -28,14 +27,14 @@ permissions:
 
 jobs:
 
-  skyrl_train_tests_multi_lora_megatron:
+  tinker_skyrl_train_backend_gpu_tests:
     if: >
       github.event_name == 'push' ||
       github.event_name == 'workflow_dispatch' ||
       (
         github.event_name == 'pull_request_target' &&
         !github.event.pull_request.draft &&
-        contains(github.event.pull_request.labels.*.name, 'run_train_multi_lora_megatron_gpu_ci') &&
+        contains(github.event.pull_request.labels.*.name, 'run_tinker_skyrl_train_backend_gpu_ci') &&
         (
           github.event.pull_request.author_association == 'MEMBER' ||
           github.event.pull_request.author_association == 'OWNER' ||
@@ -69,5 +68,5 @@ jobs:
           ANYSCALE_CLI_TOKEN: ${{ secrets.ANYSCALE_CLI_TOKEN }}
           ANYSCALE_HOST: https://console.anyscale.com
         run: |
-          anyscale job submit -f ci/anyscale_gpu_ci_multi_lora_megatron.yaml --timeout 5000
-          anyscale job wait --cloud sky-anyscale-aws-us-east-1 --name skyrl-train-gpu-ci-multi-lora-megatron --timeout 5000
+          anyscale job submit -f ci/anyscale_tinker_skyrl_train_backend_gpu.yaml --timeout 5000
+          anyscale job wait --cloud sky-anyscale-aws-us-east-1 --name tinker-skyrl-train-backend-gpu --timeout 5000

…anyscale_gpu_ci_multi_lora_megatron.yaml …cale_tinker_skyrl_train_backend_gpu.yamlci/anyscale_gpu_ci_multi_lora_megatron.yaml renamed to ci/anyscale_tinker_skyrl_train_backend_gpu.yaml ci/anyscale_gpu_ci_multi_lora_megatron.yaml renamed to ci/anyscale_tinker_skyrl_train_backend_gpu.yaml

@@ -1,5 +1,5 @@
-name: skyrl-train-gpu-ci-multi-lora-megatron
-entrypoint: bash ci/gpu_ci_run_multi_lora_megatron.sh
+name: tinker-skyrl-train-backend-gpu
+entrypoint: bash ci/gpu_ci_run_tinker_skyrl_train_backend.sh
 image_uri: novaskyai/skyrl-train-ray-2.51.1-py3.12-cu12.8-megatron
 cloud: sky-anyscale-aws-us-east-1
 ray_version: "2.51.1"