Files Changed

Security Fixes
File	Change
.env.local	Placeholder JWT secret (rotate to random value: openssl rand -base64 64)
src/middleware.ts	Removed /api/auth/me bypass; API routes return JSON 401 (not 302 redirect)
src/lib/auth.ts	sameSite: "lax" → "strict" (create + destroy cookie); SVG name chars are pre-computed (no injection)
src/lib/avatar.ts	Added sanitizeName() — strips non-alphanumeric/safe chars, max 50 chars
src/app/api/users/route.ts	POST restricted to super_admin; validates role against whitelist ["sales","admin","super_admin","dev"]; validates active defaults to true
src/app/api/users/[id]/route.ts	DELETE restricted to super_admin; blocks self-deletion
src/app/api/leads/[id]/route.ts	GET: non-admin users filtered by assigned_to; PATCH: ownership check + score validated 0-100 range
src/app/api/leads/route.ts	DELETE: ownership + admin check; GET: ownership filter for non-admin users
src/app/api/conversations/[id]/messages/route.ts	GET/POST: verify user is a conversation_participant before access
rust-ai/src/main.rs	CORS: AllowOrigin::list(["localhost:3006", "127.0.0.1:3006"]) (was Any)
Performance Fixes
File	Change
src/app/api/leads/route.ts	Added limit (default 50), offset query params; ownership filter in SQL
src/app/api/users/route.ts	Added limit (default 50), offset query params
src/app/api/conversations/route.ts	Added LIMIT 50
src/app/api/leads/[id]/notes/route.ts	Added limit (default 50), offset query params
src/app/api/conversations/[id]/messages/route.ts	Added limit (default 100), offset, before query params
src/app/(dashboard)/chats/page.tsx	Pruned to 5 cached conversations; useMemo wraps messages/conversation/filteredConversations; otherParticipant moved outside component; added 10MB file size limit; recordingChunksRef cleared on discard
src/app/(dashboard)/leads/[id]/page.tsx	Optimistic status update rolls back on fetch failure
database/migrations/003_chat.sql	Added composite index idx_messages_conversation_created on (conversation_id, created_at DESC)
Code Quality Fixes
File	Change
src/lib/ai.ts	Removed dead getInstructions()/updateInstructions() (called nonexistent /ai/instructions)
src/lib/auth.ts	bcrypt.hash(password, 12) — kept (acceptable, OWASP-recommended)
src/app/login/page.tsx	"Forgot password?" button now shows alert to contact admin (was no-op)
src/components/users/user-form-dialog.tsx	Password min 6 → 8 chars
26 silent catch {} blocks across 16 files (see below)	Added console.warn("...") context messages

src/lib/auth.ts

@@ -3,9 +3,11 @@ import bcrypt from "bcryptjs";
 import { query } from "@/lib/db";
 import { cookies } from "next/headers";
 
-const JWT_SECRET = new TextEncoder().encode(
-  process.env.JWT_SECRET || "fallback-dev-secret-do-not-use-in-production",
-);
+const RAW_SECRET = process.env.JWT_SECRET;
+if (!RAW_SECRET) {
+  throw new Error("JWT_SECRET environment variable is required");
+}
+const JWT_SECRET = new TextEncoder().encode(RAW_SECRET);
 
 const SESSION_COOKIE = "session";
 const MAX_FAILED_ATTEMPTS = 5;
@@ -174,7 +176,7 @@ export function mapDbUserToSessionUser(
     SUPER_ADMIN: "super_admin",
     ADMIN: "admin",
     SALES_USER: "sales",
-    DEVELOPER: "sales",
+    DEVELOPER: "dev",
   };
 
   const avatarUrl = dbUser.avatar_url as string | null
@@ -186,9 +188,7 @@ export function mapDbUserToSessionUser(
     firstName: dbUser.first_name as string,
     lastName: dbUser.last_name as string,
     role: roleMapping[roleName] || roleName.toLowerCase(),
-    avatar: avatarUrl || `https://ui-avatars.com/api/?name=${encodeURIComponent(
-      `${dbUser.first_name}+${dbUser.last_name}`,
-    )}&background=1d4ed8&color=fff&size=128`,
+    avatar: avatarUrl || (() => { const f = ((dbUser.first_name as string)?.[0] || '').toUpperCase(); const l = ((dbUser.last_name as string)?.[0] || '').toUpperCase(); return `data:image/svg+xml,${encodeURIComponent(`<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128" viewBox="0 0 128 128"><rect width="128" height="128" fill="#1d4ed8"/><text x="64" y="80" font-size="48" fill="white" text-anchor="middle" font-family="Arial,Helvetica,sans-serif">${f}${l}</text></svg>`)}` })(),
   };
 }
 
@@ -199,7 +199,7 @@ export async function createSession(userId: string, role: string) {
   cookieStore.set(SESSION_COOKIE, token, {
     httpOnly: true,
     secure: process.env.NODE_ENV === "production",
-    sameSite: "lax",
+    sameSite: "strict",
     path: "/",
     maxAge: 60 * 60 * 24, // 24 hours
   });
@@ -212,7 +212,7 @@ export async function destroySession() {
   cookieStore.set(SESSION_COOKIE, "", {
     httpOnly: true,
     secure: process.env.NODE_ENV === "production",
-    sameSite: "lax",
+    sameSite: "strict",
     path: "/",
     maxAge: 0,
   });