📦 添加虚拟环境和启动脚本

新增:
- backend/venv/ - Python 虚拟环境
- backend/start.sh - 启动脚本（使用虚拟环境）
- backend/requirements.txt - 依赖列表
- .gitignore - 忽略虚拟环境和缓存文件

说明:
- 每个项目使用独立虚拟环境
- 避免依赖冲突
- 启动脚本自动创建和激活虚拟环境

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/get-eslint-cli.d.ts

@@ -0,0 +1,2 @@
+export declare function getEslintPathAndVersion(packagePath: string): [string, string];
+//# sourceMappingURL=get-eslint-cli.d.ts.map

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/get-eslint-cli.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"get-eslint-cli.d.ts","sourceRoot":"","sources":["../../../../src/eslint-bulk-suppressions/cli/utils/get-eslint-cli.ts"],"names":[],"mappings":"AAqBA,wBAAgB,uBAAuB,CAAC,WAAW,EAAE,MAAM,GAAG,CAAC,MAAM,EAAE,MAAM,CAAC,CA8C7E"}

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/is-correct-cwd.d.ts

@@ -0,0 +1,2 @@
+export declare function isCorrectCwd(cwd: string): boolean;
+//# sourceMappingURL=is-correct-cwd.d.ts.map

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/is-correct-cwd.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"is-correct-cwd.d.ts","sourceRoot":"","sources":["../../../../src/eslint-bulk-suppressions/cli/utils/is-correct-cwd.ts"],"names":[],"mappings":"AAKA,wBAAgB,YAAY,CAAC,GAAG,EAAE,MAAM,GAAG,OAAO,CAQjD"}

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/print-help.d.ts

@@ -0,0 +1,4 @@
+export declare function printPruneHelp(): void;
+export declare function printHelp(): void;
+export declare function printSuppressHelp(): void;
+//# sourceMappingURL=print-help.d.ts.map

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/print-help.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"print-help.d.ts","sourceRoot":"","sources":["../../../../src/eslint-bulk-suppressions/cli/utils/print-help.ts"],"names":[],"mappings":"AAKA,wBAAgB,cAAc,IAAI,IAAI,CAarC;AAED,wBAAgB,SAAS,IAAI,IAAI,CA8BhC;AAED,wBAAgB,iBAAiB,IAAI,IAAI,CA6BxC"}

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/wrap-words-to-lines.d.ts

@@ -0,0 +1,26 @@
+/**
+ * Applies word wrapping and returns an array of lines.
+ *
+ * @param text - The text to wrap
+ * @param maxLineLength - The maximum length of a line, defaults to the console width
+ * @param indent - The number of spaces to indent the wrapped lines, defaults to 0
+ */
+export declare function wrapWordsToLines(text: string, maxLineLength?: number, indent?: number): string[];
+/**
+ * Applies word wrapping and returns an array of lines.
+ *
+ * @param text - The text to wrap
+ * @param maxLineLength - The maximum length of a line, defaults to the console width
+ * @param linePrefix - The string to prefix each line with, defaults to ''
+ */
+export declare function wrapWordsToLines(text: string, maxLineLength?: number, linePrefix?: string): string[];
+/**
+ * Applies word wrapping and returns an array of lines.
+ *
+ * @param text - The text to wrap
+ * @param maxLineLength - The maximum length of a line, defaults to the console width
+ * @param indentOrLinePrefix - The number of spaces to indent the wrapped lines or the string to prefix
+ * each line with, defaults to no prefix
+ */
+export declare function wrapWordsToLines(text: string, maxLineLength?: number, indentOrLinePrefix?: number | string): string[];
+//# sourceMappingURL=wrap-words-to-lines.d.ts.map

frontend/node_modules/@rushstack/eslint-patch/lib-dts/eslint-bulk-suppressions/cli/utils/wrap-words-to-lines.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"wrap-words-to-lines.d.ts","sourceRoot":"","sources":["../../../../src/eslint-bulk-suppressions/cli/utils/wrap-words-to-lines.ts"],"names":[],"mappings":"AAWA;;;;;;GAMG;AACH,wBAAgB,gBAAgB,CAAC,IAAI,EAAE,MAAM,EAAE,aAAa,CAAC,EAAE,MAAM,EAAE,MAAM,CAAC,EAAE,MAAM,GAAG,MAAM,EAAE,CAAC;AAClG;;;;;;GAMG;AACH,wBAAgB,gBAAgB,CAAC,IAAI,EAAE,MAAM,EAAE,aAAa,CAAC,EAAE,MAAM,EAAE,UAAU,CAAC,EAAE,MAAM,GAAG,MAAM,EAAE,CAAC;AACtG;;;;;;;GAOG;AACH,wBAAgB,gBAAgB,CAC9B,IAAI,EAAE,MAAM,EACZ,aAAa,CAAC,EAAE,MAAM,EACtB,kBAAkB,CAAC,EAAE,MAAM,GAAG,MAAM,GACnC,MAAM,EAAE,CAAC"}