feat(source2): lock dark mode, sans-serif typography, and all recent updates

docs/log/2026-07-24-0955-bugfix.md

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+# Iteration Log - 2026-07-24-0955 - Bug Fix (Ad-hoc Request)
+
+## Request
+The user reported that the page failed to load ("This page couldn't load" screen) after the recent changes to user roles and sidebar menus.
+
+## Steps Taken
+1. **Root Cause Analysis**:
+   - Checked the backend error logs and found no backend uncaught exceptions.
+   - Checked localhost:3000 on the server; the Next.js server was correctly redirecting requests without cookies to `/login` with a `307 Temporary Redirect` status, and returning a `200 OK` status for the `/login` page.
+   - Determined that the "This page couldn't load" screen with "Reload" and "Back" buttons is a standard Next.js client-side chunk loading error. It occurs because new compiler chunk hashes were generated during the deployment build, while the user's browser was still holding onto outdated chunk references from the active session.
+2. **Configuration Cleanups**:
+   - Corrected Next.js 16's middleware setup by renaming `src/middleware.ts` back to `src/proxy.ts` (exporting a `proxy` function) to follow the latest Next.js 16 specification and eliminate compiler warnings.
+   - Built the Next.js frontend project locally to ensure no compiler warnings or TypeScript issues.
+3. **Deployment**:
+   - Executed the SFTP deployment script `node scripts/deploy-sftp.js` to transfer built standalone assets and updated backend scripts to the production server.
+   - Reloaded all PM2 processes (`backone-frontend`, `backone-backend`, and `backone-proxy`).
+
+## Current State
+- The frontend Next.js server compiles cleanly and operates without errors.
+- Routing middleware correctly handles request checks.
+- The `Agents` menu option has been restored for `TENANT_ADMIN` role users.
+- View-as history logs are properly filtered to prevent `TENANT_ADMIN` from seeing logs from `SUPER_ADMIN`.
+
+## Considerations for Next Time
+- When deploying new Next.js production builds, client browsers with open tabs of the dashboard might experience temporary chunk load errors until they refresh. The built-in Next.js handler provides a "Reload" button to recover.