Initial vibeproxy implementation

Self-contained HTTP/HTTPS/TCP/UDP reverse proxy manager written in Go,
with SQLite storage, a Bootstrap 5 admin UI (Go templates, no JS
framework), and a REST API under /api/v1.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QTXFrNP1imCW7jtfL5SZrw

internal/web/templates/logs_audit.html

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+{{define "logs_audit"}}{{template "header" .}}
+{{$d := .Data}}
+<ul class="nav nav-pills mb-3">
+  <li class="nav-item"><a class="nav-link" href="/logs">Requests</a></li>
+  <li class="nav-item"><a class="nav-link active" href="/logs/audit">Audit</a></li>
+</ul>
+<div class="card">
+  <div class="table-responsive">
+    <table class="table table-sm align-middle mb-0">
+      <thead class="table-light"><tr><th>Time</th><th>Actor</th><th>Action</th><th>Target</th><th>Details</th></tr></thead>
+      <tbody>
+      {{range $d.Logs}}
+        <tr>
+          <td>{{fmtTime .Timestamp}}</td>
+          <td>{{.Actor}}</td>
+          <td><span class="badge text-bg-light border">{{.Action}}</span></td>
+          <td>{{.Target}}</td>
+          <td class="text-secondary">{{.Details}}</td>
+        </tr>
+      {{else}}
+        <tr><td colspan="5" class="text-center text-secondary py-4">No audit events yet.</td></tr>
+      {{end}}
+      </tbody>
+    </table>
+  </div>
+</div>
+{{if gt $d.TotalPages 1}}
+<nav class="mt-3"><ul class="pagination pagination-sm">
+  {{range $i := iterate $d.TotalPages}}
+  <li class="page-item {{if eq (add $i 1) $d.Page}}active{{end}}"><a class="page-link" href="/logs/audit?page={{add $i 1}}">{{add $i 1}}</a></li>
+  {{end}}
+</ul></nav>
+{{end}}
+{{template "footer" .}}{{end}}