v7.4: Fast Tensor Contractions

• Faster tensor contractions
• Faster GEMM "packers" with SIMD
• New SVE+SDOT kernels for i8
• MSVC build stability on Arm

Minor

• Add: WASM elementwise ops & spatial mini-float kernels (81b8c44)
• Add: WASM type-casting kernels (e09df31)
• Add: SVE+SDOT ops for 8-bit integers (913fc6b)

Patch

• Fix: Misplaced NEON loads/stores in Sierra (05e3045)
• Fix: Avoid unconsitional np symbols (9dffb68)
• Make: Resolve probe locations for NPM consumers (c602f45)
• Docs: Refined "What's Inside" (28f35cd)
• Docs: Mini-float kernel selection strategy (04e6598)
• Improve: Accelerate PyTests, reduce Decimal use (2417248)
• Make: Move .pyi for PyLance (688ec2d)
• Fix: Inconsistent SME function qualifiers (5b4148a)
• Improve: Smaller test inputs under QEMU (ee36bf2)
• Improve: Vectorize GEMM "packers" (86127a4)
• Make: Longer timeouts for QEMU in CI (a9cc732)
• Fix: vec_t store helper args order (eecbcac)
• Fix: Negative stride tensor reductions (3ea81be)
• Improve: Recursive stride collapsing and axis-lane fast paths for N-D reductions (cf8eaf6)
• Improve: Faster reductions in strided tensors (61651ed)
• Improve: Wider NEON curved, mesh, & probability F16 kernels (1c17678)
• Fix: Harden mini-float type-casting (1911b89)
• Make: Ship win32-arm64 NPM builds (578b7ad)
• Make: Auto-bump JS platform-specific versions (5617f75)
• Fix: vcombine instead of initializer lists for NEON arrays in MSVC (906c178)
• Fix: Avoid flaky vld1_f16 for MSVC (7a987d2)