🐛 fix(tsl-syntax-reference): repair routing for colloquial queries

- split 03's overloaded 字符串边界规则: substring read/replace/delete/insert
  now sit in 字符串子串读写 with their own tags, so `截取子串` / `子串` /
  `字符串区间` stop returning only weak candidates, which SKILL.md tells the
  agent to treat as a fact gap even though the fact is on the page
- tag the remaining 03 section for wide strings, encoding conversion and
  binary buffers; those queries used to land on the neighbouring concat
  section, or on 23's binary-function overload
- add 异常处理 to 07's try-except and rename 21's H3 to 无效输入替换参数: the
  matrix ErrDefine section owned that phrase and outranked try-except by
  92 to a weak 11, while its own text says NAN is not an error position
- tag 03's like section for 正则表达式 and 08 for 调用父类方法 / 定义类; all
  three reached the wrong section on the right page, and 定义类 could not
  reach 最小类与声明位置 at all because the per-page cap was already full
- drop the redundant 可直接照写示例 under 03's 禁止项 and state the closed
  interval rule as a bullet instead; a positive example does not belong in
  the prohibition list

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

skills/tsl-syntax-reference/references/21_matrix_deep_dive.md

@@ -656,9 +656,9 @@ writeLn(a[0][0]);
 - `:*=`、`:/=`、`:\=`、`:^=` 分别是矩阵乘、除、左除、乘方的复合赋值形式
 - `a :*= b` 等价于 `a := a :* b`
 
-### 基础函数的矩阵广播与异常处理参数
+### 基础函数的矩阵广播与无效输入替换参数
 
-<!-- tags: 对整个矩阵取整, 函数作用于每个元素, 广播, 出错时给默认值 -->
+<!-- tags: 对整个矩阵取整, 函数作用于每个元素, 广播, 出错时给默认值, 无效输入替换, errdefine, errreplace -->
 
 多参数基础函数支持逐参数广播：