refactor(tpv): rowptr[T] 迁移 + D 表定长缓冲改精确分配 + SHA1 前缀判定收敛（D1/D3/D4/D5/D6/D7/C10）

App/lib/core/Gen/MatchGenMixin.vp

@@ -91,7 +91,7 @@ class MatchGenMixin:
                               node: ast.AST | t.CPtr) -> int:
         if node is None:
             return 0
-        pool: memhub.MemBuddy | t.CPtr = trans.Pool
+        pool: rowptr[memhub.MemBuddy] = trans.Pool
         builder: llvmlite.IRBuilder | t.CPtr = trans._cur_builder
         func: llvmlite.Function | t.CPtr = trans._cur_func
         if builder is None or func is None:
@@ -278,7 +278,7 @@ class MatchGenMixin:
                             node: ast.Match | t.CPtr,
                             renum_name: str,
                             subject_ptr: llvmlite.Value | t.CPtr) -> int:
-        pool: memhub.MemBuddy | t.CPtr = trans.Pool
+        pool: rowptr[memhub.MemBuddy] = trans.Pool
         builder: llvmlite.IRBuilder | t.CPtr = trans._cur_builder
         func: llvmlite.Function | t.CPtr = trans._cur_func
         # 局部记录本 renum match 是否有 br 进入 end_bb，收尾时覆盖
@@ -618,7 +618,7 @@ class MatchGenMixin:
                              renum_ty: llvmlite.LLVMType | t.CPtr,
                              subject_ptr: llvmlite.Value | t.CPtr,
                              trans: HT.Translator | t.CPtr,
-                             pool: memhub.MemBuddy | t.CPtr,
+                             pool: rowptr[memhub.MemBuddy],
                              builder: llvmlite.IRBuilder | t.CPtr):
         if pat is None or renum_entry is None or renum_ty is None:
             return
@@ -730,7 +730,7 @@ class MatchGenMixin:
         """对齐 lhs/rhs 后生成 icmp eq（指针统一 ptrtoint i64）"""
         if lhs is None or rhs is None or builder is None:
             return None
-        pool: memhub.MemBuddy | t.CPtr = trans.Pool
+        pool: rowptr[memhub.MemBuddy] = trans.Pool
         if self.Gen.ExprGenBase.is_ptr_type(lhs.Ty) != 0 \
                 or self.Gen.ExprGenBase.is_ptr_type(rhs.Ty) != 0:
             i64_ty: llvmlite.LLVMType | t.CPtr = llvmlite.Int64(pool)
@@ -771,7 +771,7 @@ class MatchGenMixin:
     def _handle_sequence_match(self, trans: HT.Translator | t.CPtr,
                                node: ast.Match | t.CPtr,
                                subject_node: ast.AST | t.CPtr) -> int:
-        pool: memhub.MemBuddy | t.CPtr = trans.Pool
+        pool: rowptr[memhub.MemBuddy] = trans.Pool
         builder: llvmlite.IRBuilder | t.CPtr = trans._cur_builder
         func: llvmlite.Function | t.CPtr = trans._cur_func
         if builder is None or func is None:
@@ -1105,7 +1105,7 @@ class MatchGenMixin:
     def _handle_simple_match(self, trans: HT.Translator | t.CPtr,
                              node: ast.Match | t.CPtr,
                              subject_val: llvmlite.Value | t.CPtr) -> int:
-        pool: memhub.MemBuddy | t.CPtr = trans.Pool
+        pool: rowptr[memhub.MemBuddy] = trans.Pool
         builder: llvmlite.IRBuilder | t.CPtr = trans._cur_builder
         func: llvmlite.Function | t.CPtr = trans._cur_func
         # 同主路径：局部记录本 simple match 的 br end_bb，收尾覆盖