chore(content-safety): 🔧 Update content safety checks in markdown/HTML sanitization pipeline

Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>

features/content-safety/backend-api/.swcrc

@@ -0,0 +1,20 @@
+{
+  "$schema": "https://json.schemastore.org/swcrc",
+  "jsc": {
+    "parser": {
+      "syntax": "typescript",
+      "decorators": true
+    },
+    "transform": {
+      "legacyDecorator": true,
+      "decoratorMetadata": true
+    },
+    "target": "es2022",
+    "keepClassNames": true
+  },
+  "module": {
+    "type": "es6",
+    "resolveFully": true
+  },
+  "sourceMaps": true
+}

features/content-safety/backend-api/nest-cli.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "https://json.schemastore.org/nest-cli",
+  "collection": "@nestjs/schematics",
+  "sourceRoot": "src",
+  "compilerOptions": {
+    "builder": "swc",
+    "deleteOutDir": true,
+    "plugins": ["@nestjs/swagger"]
+  }
+}

features/content-safety/backend-api/package.json

@@ -0,0 +1,57 @@
+{
+  "name": "@features/content-safety-backend-api",
+  "version": "1.0.0",
+  "type": "module",
+  "private": true,
+  "main": "dist/main.js",
+  "scripts": {
+    "build": "nest build",
+    "start": "node dist/main.js",
+    "start:dev": "nest start --watch",
+    "dev": "nest start --watch",
+    "lint": "eslint \"src/**/*.ts\"",
+    "test": "lixtest",
+    "typecheck": "tsc --noEmit",
+    "verify": "bun run build && node scripts/verify-circular-deps.mjs"
+  },
+  "dependencies": {
+    "@lilith/domain-events": "^2.8.2",
+    "@lilith/imajin-moderator-client": "^1.0.0",
+    "@lilith/nestjs-auth": "^1.0.3",
+    "@lilith/nestjs-health": "^1.0.0",
+    "@lilith/service-nestjs-bootstrap": "^2.2.6",
+    "@lilith/service-registry": "^1.3.0",
+    "@lilith/typeorm-entities": "^1.0.33",
+    "@nestjs/bullmq": "^11.0.2",
+    "@nestjs/common": "11.1.11",
+    "@nestjs/config": "^4.0.2",
+    "@nestjs/core": "11.1.11",
+    "@nestjs/jwt": "^11.0.2",
+    "@nestjs/platform-express": "11.1.11",
+    "@nestjs/swagger": "^11.2.5",
+    "@nestjs/typeorm": "^11.0.0",
+    "bullmq": "^5.0.0",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.3",
+    "express": "^5.2.1",
+    "ioredis": "^5.6.1",
+    "pg": "^8.17.1",
+    "reflect-metadata": "^0.2.2",
+    "rxjs": "^7.8.2",
+    "typeorm": "^0.3.28",
+    "uuid": "^10.0.0"
+  },
+  "devDependencies": {
+    "@lilith/configs": "^2.2.0",
+    "@lilith/lix-configs": "^1.0.1",
+    "@lilith/lix-test": "^1.0.0",
+    "@nestjs/cli": "^11.0.16",
+    "@nestjs/schematics": "^11.0.9",
+    "@nestjs/testing": "^11.1.12",
+    "@swc/cli": "^0.7.10",
+    "@swc/core": "^1.15.8",
+    "@types/node": "^20.19.30",
+    "@types/uuid": "^10.0.0",
+    "typescript": "^5.9.3"
+  }
+}

features/content-safety/backend-api/src/constants/thresholds.ts

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+/**
+ * Decision thresholds for content safety scanning.
+ * Tweak these to calibrate sensitivity without touching business logic.
+ */
+
+/** Risk score (0–100) at or above which content is QUARANTINED */
+export const RISK_SCORE_QUARANTINE_THRESHOLD = 60;
+
+/** NSFW probability at or above which content triggers a check */
+export const NSFW_SCORE_REVIEW_THRESHOLD = 0.7;
+
+/** Prohibited content score that triggers a BLOCK */
+export const PROHIBITED_HIGH_THRESHOLD = 0.85;
+
+/** Prohibited content score that triggers QUARANTINE */
+export const PROHIBITED_MEDIUM_THRESHOLD = 0.5;
+
+/** Identity similarity score below which a mismatch is flagged */
+export const IDENTITY_SIMILARITY_MISMATCH_THRESHOLD = 0.75;
+
+/** BullMQ queue name for async video scanning */
+export const VIDEO_SCAN_QUEUE = 'content-safety:video-scan';

features/content-safety/backend-api/tsconfig.json

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+{
+  "extends": "@lilith/configs/typescript/nestjs",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "baseUrl": "./",
+    "paths": {
+      "@/*": ["src/*"]
+    }
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}