Add Grep glob case-insensitive flag

Author: SqlRush

docs/claude-code-go-rewrite-plan.md

@@ -210,6 +210,7 @@ test/parity/                 # golden tests against TS/official behavior
 - 本轮补充：Grep 路径过滤现在支持 ripgrep 风格 `--glob`/`-g` 和 `--type`/`-t` aliases，执行和 structured content 都统一使用归一化后的 glob/type 过滤值。
 - 本轮补充：Grep 路径过滤现在支持 ripgrep 风格 `type_not`/`typeNot`/`type-not`/`--type-not`/`-T`，可在 `type` 限定后排除指定文件类型，structured content 会回传归一化后的排除类型。
 - 本轮补充：Grep 路径过滤现在支持 ripgrep 风格 `iglob`/`--iglob` 大小写不敏感 glob，和 `glob` 共享正向/`!` 排除规则集合并语义，structured content 会回传归一化后的 `iglob` 过滤值。
+- 本轮补充：Grep 路径过滤现在支持 ripgrep 风格 `glob_case_insensitive`/`globCaseInsensitive`/`glob-case-insensitive`/`--glob-case-insensitive` 及 no-override aliases，让普通 `glob`/`--glob`/`-g` 按大小写不敏感方式匹配。
 - 本轮补充：Grep `glob`/`--glob`/`-g` 路径过滤现在支持 ripgrep 风格 `!pattern` 排除规则，可与正向 glob、逗号/空白多 pattern 和 brace alternation 组合；只有排除规则时默认包含未被排除的路径。
 - 本轮补充：Grep 搜索现在支持 ripgrep 风格 `text`/`--text`/`-a`，可显式把二进制扩展名文件按文本读取参与匹配，structured content 会回传 `text` 状态；`-a` 同样兼容 quoted semantic boolean。
 - 本轮补充：Grep content 输出现在支持 ripgrep 风格 `passthru`/`passthrough`/`--passthru`/`--passthrough`，可输出被搜索文件的全部行并保留匹配行标记；启用后按官方语义覆盖 context 行数，quoted semantic boolean 同样兼容。

docs/first-second-parity-audit.md

@@ -138,6 +138,7 @@ Covered behavior:
 - `Grep` now accepts ripgrep-style traversal depth limiting through `max_depth`/`maxDepth`/`max-depth`/`--max-depth`/`-d`, including quoted numeric input and `--max-depth 0` directory no-op behavior.
 - `Grep` now accepts ripgrep-style negative type filtering through `type_not`/`typeNot`/`type-not`/`--type-not`/`-T`, applying it after any positive `type` filter and preserving structured filter metadata.
 - `Grep` now accepts ripgrep-style case-insensitive glob filtering through `iglob`/`--iglob`, sharing positive and `!` negative glob rule semantics with `glob` while preserving structured filter metadata.
+- `Grep` now accepts ripgrep-style `glob_case_insensitive`/`--glob-case-insensitive` plus no-override aliases, making ordinary `glob`/`--glob`/`-g` filters match paths case-insensitively while preserving `iglob` behavior.
 - `Grep` glob filtering now accepts ripgrep-style negated `!pattern` rules, including combinations with positive patterns, comma/whitespace splitting, and brace-expanded globs.
 - `Grep` now accepts `text`/`--text`/`-a` to search binary-extension files as text while preserving the default binary-extension skip behavior.
 - `Grep` now accepts `line_regexp`/`line-regexp`/`--line-regexp`/`-x` to require whole-line matches, with fixed-string and word-regexp precedence covered.