feat(v11): CI/CD + regression tests + fuzzing + benchmarks + code quality

v11.1 — Test Infrastructure (14 files):
- .github/workflows/ci.yml: Ubuntu 22.04 + GCC 11, auto ctest on push
- tests/regression/: degenerate geometry, extreme coords, thin wall, large models
- tests/fuzz/: SDF random CSG, random booleans, format round-trip, continuous mode
- tests/benchmark/: boolean perf, MC perf, IO perf benchmarks
- docs/benchmark-report.md: benchmark template

v11.2 — Code Quality + Docs:
- .clang-tidy: 15 check categories, 22 exclusions
- .github/workflows/static-analysis.yml: clang-tidy CI scan
- CODEOWNERS, SECURITY.md
- docs: API overview, testing guide, contributing guide
- README: module capability overview table

Pending: binary formats + curve projection (retrying)

.clang-tidy

@@ -1,44 +1,133 @@
+# ── ViewDesignEngine clang-tidy 配置 ──────────────────────────────
+# C++17 CAD 几何引擎静态分析规则集
+#
+# 校验要求:
+#   Checks:          clang-tidy-14 / clang-tidy-18
+#   FormatStyle:     file (.clang-format 优先)
+#   HeaderFilterRegex: 只分析项目头文件，不检查 Eigen/GTest 等第三方头文件
+#   WarningsAsErrors: 'bugprone-*,cert-*,misc-use-after-move,performance-*'
+
 Checks: >
   -*,
   bugprone-*,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-narrowing-conversions,
   cert-*,
+  -cert-err58-cpp,
   clang-analyzer-*,
   cppcoreguidelines-*,
   -cppcoreguidelines-avoid-magic-numbers,
   -cppcoreguidelines-pro-bounds-array-to-pointer-decay,
+  -cppcoreguidelines-pro-type-vararg,
+  -cppcoreguidelines-pro-type-reinterpret-cast,
   -cppcoreguidelines-owning-memory,
   google-*,
   -google-readability-todo,
+  -google-runtime-references,
   misc-*,
+  -misc-include-cleaner,
   -misc-non-private-member-variables-in-classes,
+  -misc-no-recursion,
   modernize-*,
   -modernize-use-trailing-return-type,
+  -modernize-use-nodiscard,
   performance-*,
   portability-*,
   readability-*,
   -readability-magic-numbers,
-  -readability-identifier-length
+  -readability-identifier-length,
+  -readability-function-cognitive-complexity,
+  -readability-isolate-declaration,
+
+WarningsAsErrors: >
+  bugprone-*,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-narrowing-conversions,
+  cert-*,
+  clang-analyzer-*,
+  performance-*,
+
+HeaderFilterRegex: 'include/vde/.*\.h$'
+
+FormatStyle: file
 
 CheckOptions:
-  - key: readability-identifier-naming.NamespaceCase
-    value: lower_case
+  # ── 命名约定 ──
   - key: readability-identifier-naming.ClassCase
     value: CamelCase
   - key: readability-identifier-naming.StructCase
     value: CamelCase
   - key: readability-identifier-naming.FunctionCase
-    value: lower_case
+    value: camelBack
   - key: readability-identifier-naming.VariableCase
-    value: lower_case
+    value: camelBack
   - key: readability-identifier-naming.MemberCase
-    value: lower_case
+    value: camelBack
   - key: readability-identifier-naming.MemberSuffix
-    value: _
+    value: '_'
+  - key: readability-identifier-naming.EnumCase
+    value: CamelCase
   - key: readability-identifier-naming.EnumConstantCase
     value: CamelCase
-  - key: readability-identifier-naming.EnumConstantPrefix
-    value: k
+  - key: readability-identifier-naming.NamespaceCase
+    value: lower_case
+  - key: readability-identifier-naming.TemplateParameterCase
+    value: CamelCase
+  - key: readability-identifier-naming.TypeAliasCase
+    value: CamelCase
+  - key: readability-identifier-naming.GlobalConstantCase
+    value: UPPER_CASE
+  - key: readability-identifier-naming.StaticConstantCase
+    value: UPPER_CASE
+  - key: readability-identifier-naming.ConstexprVariableCase
+    value: UPPER_CASE
   - key: readability-identifier-naming.MacroDefinitionCase
     value: UPPER_CASE
 
-WarningsAsErrors: ""
+  # ── 现代 C++ 检查 ──
+  - key: modernize-use-auto.MinTypeNameLength
+    value: '8'
+  - key: modernize-use-auto.RemoveStars
+    value: 'true'
+  - key: modernize-use-emplace.ContainersWithPushBack
+    value: 'std::vector;std::list;std::deque'
+  - key: modernize-loop-convert.UseCxx20ReverseRanges
+    value: 'true'
+  - key: modernize-pass-by-value.ValuesOnly
+    value: 'true'
+
+  # ── 性能检查 ──
+  - key: performance-move-const-arg.CheckTriviallyCopyableMove
+    value: 'true'
+  - key: performance-for-range-copy.WarnOnAllAutoCopies
+    value: 'true'
+  - key: performance-unnecessary-value-param.AllowedTypes
+    value: ''
+
+  # ── 代码准则 ──
+  - key: cppcoreguidelines-special-member-functions.AllowMissingMoveFunctions
+    value: 'true'
+  - key: cppcoreguidelines-special-member-functions.AllowSoleDefaultDtor
+    value: 'true'
+
+  # ── 杂项 ──
+  - key: misc-throw-by-value-catch-by-reference.CheckThrowTemporaries
+    value: 'true'
+
+  # ── bug 检测 ──
+  - key: bugprone-argument-comment.StrictMode
+    value: 'false'
+  - key: bugprone-exception-escape.FunctionsThatShouldNotThrow
+    value: ''
+
+  # ── 可读性 ──
+  - key: readability-function-size.LineThreshold
+    value: '-1'
+  - key: readability-function-size.StatementThreshold
+    value: '800'
+  - key: readability-function-size.BranchThreshold
+    value: '-1'
+  - key: readability-function-size.ParameterThreshold
+    value: '-1'
+  - key: readability-simplify-subscript-expr.Types
+    value: '::std::vector;::std::array'