Remove legacy Sphinx docs/ and finish the Mintlify cutover (#28964)

.claude/skills/add-jit-kernel/SKILL.md

@@ -618,7 +618,7 @@ cd test && python3 run_suite.py --hw cuda --suite base-b-kernel-benchmark-test-1
 
 ## References
 
-- `docs/developer_guide/development_jit_kernel_guide.md`
+- `docs_new/docs/developer_guide/development_jit_kernel_guide.mdx`
 - `test/run_suite.py` — suite names, discovery of `test/registered/`, execution entrypoint for CI
 - `python/sglang/test/ci/ci_register.py` — `register_cuda_ci` and AST registration rules
 - `python/sglang/jit_kernel/utils.py` — `cache_once`, `load_jit`, `make_cpp_args`, `should_run_full_tests`, `get_ci_test_range`

.claude/skills/llm-torch-profiler-analysis/references/source-map.md

@@ -32,7 +32,7 @@ Use these upstream files when the workflow or behavior needs to be justified fro
 
 ## Documentation and tests
 
-- `docs/developer_guide/benchmark_and_profiling.md`
+- `docs_new/docs/developer_guide/benchmark_and_profiling.mdx`
   - canonical profiling docs
 
 - `test/registered/profiling/test_start_profile.py`