[Lint]Add lint hooks for clang-format, shellcheck, forbidden imports, and boolean context manager checks (#7511)

### What this PR does / why we need it?
This PR introduces several upstream `vllm`-aligned lint hooks into
`vllm-ascend` and makes them part of the actual `pre-commit` flow.

Main changes in this PR:
- add `check-boolean-context-manager` to catch boolean expressions in
`with` statements
- add `check-forbidden-imports` to forbid direct `re` imports and
disallowed direct `triton` imports
- enable shell script linting through `tools/shellcheck.sh`
- add root `.clang-format` aligned with upstream `vllm`, enable
`clang-format` in `pre-commit`, temporarily **exclude all `csrc/**`**
from `clang-format` to avoid bringing a large native code reformat into
this PR

This PR focuses on landing the smaller and immediately useful lint
alignment first, without mixing in the larger requirements-management
migration.

### Does this PR introduce _any_ user-facing change?
No.

This PR only updates repository lint configuration, static checks, and
internal import/style enforcement. It does not change runtime behavior
or public interfaces.

### How was this patch tested?
Tested locally in the project virtual environment.

Commands used:
```bash
bash format.sh
```
Verified checks passed:
``` bash
ruff check...............................................................Passed
ruff format..............................................................Passed
codespell................................................................Passed
typos....................................................................Passed
clang-format.............................................................Passed
Lint GitHub Actions workflow files.......................................Passed
Lint shell scripts.......................................................Passed
Lint PNG exports from excalidraw.........................................Passed
Check for spaces in all filenames........................................Passed
Enforce __init__.py in Python packages...................................Passed
Check for forbidden imports..............................................Passed
Check for boolean ops in with-statements.................................Passed
Suggestion...............................................................Passed
- hook id: suggestion
- duration: 0s

To bypass pre-commit hooks, add --no-verify to git commit.
```
**note:**
clang-format is enabled but currently excludes all csrc/**


- vLLM version: v0.17.0
- vLLM main:
8b6325758c

---------

Signed-off-by: MrZ20 <2609716663@qq.com>

tools/shellcheck.sh

@@ -19,13 +19,12 @@
 # Adapted from https://github.com/vllm-project/vllm/tree/main/tools
 #
 
-set -e
+set -euo pipefail
 
 scversion="stable"
 
 if [ -d "shellcheck-${scversion}" ]; then
-    PATH="$PATH:$(pwd)/shellcheck-${scversion}"
-    export PATH
+    export PATH="$PATH:$(pwd)/shellcheck-${scversion}"
 fi
 
 if ! [ -x "$(command -v shellcheck)" ]; then
@@ -34,12 +33,9 @@ if ! [ -x "$(command -v shellcheck)" ]; then
         exit 1
     fi
 
-    # automatic local install if linux x86_64
     wget -qO- "https://github.com/koalaman/shellcheck/releases/download/${scversion?}/shellcheck-${scversion?}.linux.x86_64.tar.xz" | tar -xJv
-    PATH="$PATH:$(pwd)/shellcheck-${scversion}"
-    export PATH
+    export PATH="$PATH:$(pwd)/shellcheck-${scversion}"
 fi
 
-# should enable this
-# find . -path ./.git -prune -o -name "*.sh" -print0 \
-# | xargs -0 -I {} sh -c 'git check-ignore -q "{}" || shellcheck -s bash "{}"'
+find . -path ./.git -prune -o -name "*.sh" -print0 | \
+  xargs -0 sh -c "for f in \"\$@\"; do git check-ignore -q \"\$f\" || shellcheck -s bash \"\$f\"; done" --