feat(codegen): validate bitwise op family

[hashiqiqixian]

Summary

• align tile.and_, tile.or_, tile.xor, tile.ands, tile.ors, and tile.xors with the current PTO-ISA dtype, valid-region, scalar, row-major layout, scratch, and aliasing contracts
• remove tile dtype promotion/broadcasting from exact bitwise ops, preserve signed/unsigned tile widths across the cross-architecture IR contract, and reject unsigned scalar encodings that PTOAS cannot represent
• add focused type and MemoryReuse coverage plus same-name runtime ST, and record A2/A3 hardware evidence in both status matrices

Validation

• complete local diff review: passed
• git diff --check: passed
• Ruff check and format check for changed Python files: passed
• serial CMake build and editable install on /data/chenshenai/test2: passed
• focused bitwise contract UT: 48 passed
• focused XOR aliasing UT: 1 passed
• repository header, English-only, and docs parity checks: passed
• A2/A3 codegen-only with latest PTOAS assembly: 18 passed; generated .pto files contain exact pto.tand, pto.tor, pto.txor, pto.tands, pto.tors, and pto.txors signatures
• A2/A3 task-submit hardware, one precompile worker and one 18-case batch: 18/18 passed on device 1

Runtime coverage includes zero, all-one, and alternating bit patterns; signed/unsigned 8/16-bit tile forms; signed 8/16-bit scalar encoding; XOR scratch separation; and narrowed valid_shape. A5 hardware validation remains pending and is documented in the status matrix.

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 10169e79-4d8d-49f5-9ef3-ee26326e3517

📥 Commits

Reviewing files that changed from the base of the PR and between 478ddad and 4a27176.

📒 Files selected for processing (9)

• docs/en/dev/codegen/00-pto_codegen.md
• docs/en/dev/ptoas-op-status.md
• docs/zh-cn/dev/codegen/00-pto_codegen.md
• docs/zh-cn/dev/ptoas-op-status.md
• src/backend/common/pto_ops_elementwise.cpp
• src/ir/op/tile_ops/elementwise.cpp
• tests/st/runtime/ops/test_bitwise_binary.py
• tests/ut/ir/operators/test_tile_ops.py
• tests/ut/ir/transforms/test_memory_reuse.py

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