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/streams.html

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+{{define "streams"}}{{template "header" .}}
+<div class="d-flex justify-content-between align-items-center mb-3">
+  <input type="text" class="form-control w-auto" placeholder="Search streams…" data-search-target="streamsTable">
+  <a href="/streams/new" class="btn btn-primary"><i class="bi bi-plus-lg"></i> Add Stream</a>
+</div>
+<div class="card">
+  <div class="table-responsive">
+    <table class="table table-hover align-middle mb-0" id="streamsTable">
+      <thead class="table-light">
+        <tr><th>Protocol</th><th>Listen</th><th>Destination</th><th>PROXY protocol</th><th>Status</th><th></th></tr>
+      </thead>
+      <tbody>
+      {{range .Data}}
+        <tr>
+          <td><span class="badge text-bg-{{if eq .Protocol "tcp"}}primary{{else}}purple bg-secondary{{end}}">{{.Protocol}}</span></td>
+          <td>{{.ListenIP}}:{{.ListenPort}}</td>
+          <td>{{.DestinationHost}}:{{.DestinationPort}}</td>
+          <td>{{if .ProxyProtocol}}<i class="bi bi-check-lg text-success"></i>{{else}}—{{end}}</td>
+          <td>{{if .Enabled}}<span class="badge text-bg-success">enabled</span>{{else}}<span class="badge text-bg-secondary">disabled</span>{{end}}</td>
+          <td class="text-end">
+            <form method="post" action="/streams/{{.ID}}/toggle" class="d-inline">
+              {{template "csrf_field" $.CSRFToken}}
+              <button class="btn btn-sm btn-outline-secondary"><i class="bi bi-power"></i></button>
+            </form>
+            <a href="/streams/{{.ID}}/edit" class="btn btn-sm btn-outline-primary"><i class="bi bi-pencil"></i></a>
+            <form method="post" action="/streams/{{.ID}}/delete" id="del-stream-{{.ID}}" class="d-inline">
+              {{template "csrf_field" $.CSRFToken}}
+            </form>
+            <button type="button" class="btn btn-sm btn-outline-danger" data-confirm-delete-form="del-stream-{{.ID}}" data-confirm-message="Delete this stream?"><i class="bi bi-trash"></i></button>
+          </td>
+        </tr>
+      {{else}}
+        <tr><td colspan="6" class="text-center text-secondary py-4">No streams yet.</td></tr>
+      {{end}}
+      </tbody>
+    </table>
+  </div>
+</div>
+{{template "confirm_delete_modal" .}}
+{{template "footer" .}}{{end}}