[ET-VK] Add ANY_STORAGE support to repeat

[SS-JIA]

Stack from ghstack (oldest at bottom):

• [ET-VK] Buckify parakeet #18062
• [ET-VK][qlinear] Add bias support to q4gsw and dq8ca_q4gsw quantized linear ops #18061
• [ET-VK] Add conv1d shaders and dispatch for 1D convolution #18060
• [ET-VK] Implement missing Vulkan operators for Parakeet TDT model #18059
• [ET-VK] Add ANY_STORAGE support to argmax and argmin #18058
• [ET-VK] Add ANY_STORAGE support to embedding #18057
• -> [ET-VK] Add ANY_STORAGE support to repeat #18056
• [ET-VK] Add ANY_STORAGE support to native_layer_norm #18055
• [ET-VK] Add ANY_STORAGE support to softmax and log_softmax #18054
• [ET-VK] Add ANY_STORAGE support to expand_copy #18053
• [ET-VK] Add ANY_STORAGE support to arange and full #18052
• [ET-VK] Generalize constant_pad_nd to support any storage type and packed dimension #18051
• [ET-VK] Add symint infrastructure to VulkanBackend and ComputeGraph #18050
• [ET-VK] Add Vulkan backend support for Parakeet runner and export #18049
• [ET-VK][ez] Fix IndexError in Vulkan partitioner DtypeSetList/TensorRepSetList #18048

Add a buffer shader variant for the repeat operator and rewrite the C++
dispatch code to support both buffer and texture storage types. Key changes:

• Add repeat_buffer.glsl/.yaml: a new buffer-path compute shader that uses
  BufferMetadata UBOs and linear index arithmetic to map each output element
  to its source element via modulo on each dimension.
• Rename repeat.glsl/.yaml to repeat_texture.glsl/.yaml (shader variant name
  repeat_texture3d) and update the push constant from dst_repeats to out_dims,
  computing out_channel_size directly from output dimensions rather than from
  input size * repeat count.
• Rewrite Repeat.cpp: remove the old check_args() function and pre-computed
  ivec4 push constants. Add resize_repeat_node() that uses
  extract_int_or_symint_list() to dynamically compute output sizes from input
  sizes and repeats, enabling dynamic shape support. Dispatch uses
  add_storage_type_suffix for shader selection, with the buffer path using
  meta_ubo UBOs and the texture path using push constants from
  logical_limits_pc_of/sizes_pc_of. Wire resize_repeat_node into
  DynamicDispatchNode.
• Update op_registry.py: change inputs_storage from ANY_TEXTURE to ANY_STORAGE.
• Update test cases: add utils::kBuffer to storage_types for both 2d and 3d
  repeat test suites.

Differential Revision: D95970170

[pytorch-bot]

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❌ 4 New Failures, 2 Cancelled Jobs, 1 Unrelated Failure

As of commit c7bcdd3 with merge base f09bd55 ():

NEW FAILURES - The following jobs have failed:

• pull / test-sqnr-static-llm-qnn-linux (smollm2_135m) / linux-job (gh)
  RuntimeError: Command docker exec -t d099aa4ba8f39b0bd950ed1c146db8ec8b253adc5009544547a28f891b0d226c /exec failed with exit code 92
• Test CUDA Builds / export-model-cuda-artifact (openai, whisper-small, quantized-int4-weight-only) / linux-job (gh)
  RuntimeError: Command docker exec -t c1e8d0f1d6bdf4a3289ccadb559c7eb3ec80f5a0b5a8a528adaa11e358e063dd /exec failed with exit code 1
• Test CUDA Windows Export and E2E / export-model-cuda-windows-artifact (mistralai, Voxtral-Mini-3B-2507, quantized-int4-weight-only) / linux-job (gh)
  RuntimeError: Command docker exec -t d999f058b08ca0636bf3b6183a6f57cbd57de53915941a981cc43fa700a41daa /exec failed with exit code 1
• Test CUDA Windows Export and E2E / export-model-cuda-windows-artifact (nvidia, parakeet-tdt, quantized-int4-weight-only) / linux-job (gh)
  RuntimeError: Command docker exec -t 22f27c3f4caa75d95b0ff42067bfee4cdcbf474c00cc6af715389d3c999a36f3 /exec failed with exit code 1

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• Check Labels / Check labels (gh)
• pull / test-static-llama-qnn-linux (stories_260k_bc) / linux-job (gh)
  ##[error]The operation was canceled.

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / unittest / macos / macos-job (gh) (trunk failure)
  export/tests/test_target_recipes.py::TestTargetRecipes::test_linear_model

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