feat: add privacy policy page and fix CSP blocking API docs

Add a privacy policy page accessible at /privacy (public, no auth required).
Relax Content-Security-Policy for /api/docs route to allow Scalar's inline
script initialization, fixing blank docs page in production.

apps/api/src/index.ts

@@ -53,10 +53,10 @@ app.addHook("onSend", async (_request, reply) => {
   reply.header("Permissions-Policy", "camera=(), microphone=(), geolocation=()");
   if (process.env.NODE_ENV === "production") {
     reply.header("Strict-Transport-Security", "max-age=31536000; includeSubDomains");
-    reply.header(
+    const csp = _request.url.startsWith("/api/docs")
-      "Content-Security-Policy",
+      ? "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' blob: data:; connect-src 'self'; font-src 'self' data:; object-src 'none'; base-uri 'self'; form-action 'self'"
-      "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' blob: data:; connect-src 'self'; font-src 'self' data:; object-src 'none'; frame-ancestors 'none'; base-uri 'self'; form-action 'self'",
+      : "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' blob: data:; connect-src 'self'; font-src 'self' data:; object-src 'none'; frame-ancestors 'none'; base-uri 'self'; form-action 'self'";
-    );
+    reply.header("Content-Security-Policy", csp);
   }
 });
 

apps/web/src/App.tsx

@@ -8,6 +8,7 @@ import { FilesPage } from "./pages/files-page";
 import { FullscreenGridPage } from "./pages/fullscreen-grid-page";
 import { HomePage } from "./pages/home-page";
 import { LoginPage } from "./pages/login-page";
+import { PrivacyPolicyPage } from "./pages/privacy-policy-page";
 import { ToolPage } from "./pages/tool-page";
 
 class ErrorBoundary extends Component<
@@ -59,7 +60,11 @@ function AuthGuard({ children }: { children: React.ReactNode }) {
   const location = useLocation();
 
   // Don't guard the login or change-password pages
-  if (location.pathname === "/login" || location.pathname === "/change-password") {
+  if (
+    location.pathname === "/login" ||
+    location.pathname === "/change-password" ||
+    location.pathname === "/privacy"
+  ) {
     return <>{children}</>;
   }
 
@@ -98,6 +103,7 @@ export function App() {
               <Route path="/automate" element={<AutomatePage />} />
               <Route path="/files" element={<FilesPage />} />
               <Route path="/fullscreen" element={<FullscreenGridPage />} />
+              <Route path="/privacy" element={<PrivacyPolicyPage />} />
               <Route path="/:toolId" element={<ToolPage />} />
               <Route path="/" element={<HomePage />} />
             </Routes>

apps/web/src/components/layout/app-layout.tsx

@@ -124,7 +124,9 @@ export function AppLayout({ children, showToolPanel = true, onFiles }: AppLayout
         </div>
         {!isMobile && (
           <div className="text-center text-xs text-muted-foreground py-2 border-t border-border">
+            <Link to="/privacy" className="hover:text-foreground transition-colors">
               Privacy Policy
+            </Link>
           </div>
         )}
       </main>

apps/web/src/pages/privacy-policy-page.tsx

@@ -0,0 +1,87 @@
+import { ArrowLeft } from "lucide-react";
+import { Link } from "react-router-dom";
+
+export function PrivacyPolicyPage() {
+  return (
+    <div className="min-h-screen bg-background text-foreground">
+      <div className="max-w-2xl mx-auto px-6 py-12">
+        <Link
+          to="/"
+          className="inline-flex items-center gap-1.5 text-sm text-muted-foreground hover:text-foreground transition-colors mb-8"
+        >
+          <ArrowLeft className="h-4 w-4" />
+          Back to app
+        </Link>
+
+        <h1 className="text-3xl font-bold mb-2">Privacy Policy</h1>
+        <p className="text-sm text-muted-foreground mb-8">Last updated: March 29, 2026</p>
+
+        <div className="space-y-6 text-sm leading-relaxed text-muted-foreground">
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">Overview</h2>
+            <p>
+              Stirling Image is a self-hosted, open-source image processing application. Your
+              instance is operated and controlled entirely by whoever deployed it. This policy
+              describes how the software itself handles your data.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">Local Processing</h2>
+            <p>
+              All image processing happens entirely on the server where Stirling Image is deployed.
+              Your images are never sent to external services or third-party APIs. When you upload
+              an image for processing, it is handled in memory or in temporary storage on the host
+              machine and is not retained after the operation completes.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">No Tracking or Analytics</h2>
+            <p>
+              Stirling Image does not include any telemetry, analytics, or tracking. No data is
+              collected about your usage patterns, and no information is sent to Stirling Image
+              developers or any third party. There are no cookies used for tracking purposes.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">Data Storage</h2>
+            <p>
+              If authentication is enabled, the application stores user accounts (usernames and
+              hashed passwords) in a local SQLite database on the host machine. If you use the Files
+              feature, uploaded files are stored on the server's filesystem. All stored data remains
+              entirely under the control of the instance operator.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">No Third-Party Services</h2>
+            <p>
+              Stirling Image does not integrate with or send data to any external services.
+              AI-powered features (background removal, upscaling, OCR) run locally using bundled
+              models. No cloud APIs are involved.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">Open Source</h2>
+            <p>
+              Stirling Image is fully open source. You can audit the source code to verify these
+              claims at any time. Transparency is a core principle of this project.
+            </p>
+          </section>
+
+          <section>
+            <h2 className="text-lg font-semibold text-foreground mb-2">Your Control</h2>
+            <p>
+              Because Stirling Image is self-hosted, the instance operator has full control over all
+              data. You can delete your data at any time by removing files from the server or
+              deleting the database. No data exists outside of your infrastructure.
+            </p>
+          </section>
+        </div>
+      </div>
+    </div>
+  );
+}