Initial implementation of inventree

A small IT asset inventory system built around a nested folder tree,
matching the project brief: Go + html/template + Bootstrap 5 + vanilla JS,
SQLite storage (WAL, FKs, migrations), embedded templates/static assets,
single compiled binary.

- AJAX-driven inventory tree: lazy-loaded folder expansion with per-user
  persisted expand state, drag-and-drop move for folders/assets, safe
  delete-with-relocate-or-cascade confirmation, search with breadcrumbs.
- Assets: CRUD, duplicate, move, auto-generated IT-000001-style IDs,
  CSV import (with optional folder auto-create) and export.
- Admin-defined item types with custom fields (text/long_text/number/date/
  boolean/dropdown/url/ip_address).
- Configurable statuses, session-based auth (bcrypt, secure cookies),
  admin/user roles, user management.
- CLI: serve, version, database migrate, database backup; /healthz;
  graceful shutdown; Dockerfile/docker-compose/systemd unit; Go test suite.

web/templates/pages/settings.html

@@ -0,0 +1,86 @@
+{{define "content"}}
+<div class="container-fluid p-3" style="max-width: 800px">
+  <h4 class="mb-3">Settings</h4>
+
+  <div class="card mb-4">
+    <div class="card-header py-2 fw-semibold">General</div>
+    <div class="card-body">
+      <form method="post" action="/settings/general" class="row g-3">
+        <div class="col-md-6">
+          <label class="form-label">Site Name</label>
+          <input type="text" class="form-control" name="site_name" value="{{.SiteName}}">
+        </div>
+        <div class="col-md-3">
+          <label class="form-label">Asset ID Prefix</label>
+          <input type="text" class="form-control" name="asset_id_prefix" value="{{.AssetPrefix}}">
+        </div>
+        <div class="col-md-3">
+          <label class="form-label">Asset ID Padding</label>
+          <input type="number" class="form-control" name="asset_id_padding" value="{{.AssetPadding}}" min="1" max="12">
+        </div>
+        <div class="col-12">
+          <button type="submit" class="btn btn-primary">Save</button>
+        </div>
+      </form>
+    </div>
+  </div>
+
+  <div class="card">
+    <div class="card-header py-2 fw-semibold">Statuses</div>
+    <div class="table-responsive">
+      <table class="table mb-0 align-middle">
+        <thead><tr><th>Order</th><th>Preview</th><th>Name &amp; Color</th><th></th></tr></thead>
+        <tbody>
+          {{range $i, $st := .Statuses}}
+          <tr>
+            <td class="text-nowrap">
+              <form method="post" action="/settings/statuses/{{$st.ID}}/reorder" class="d-inline">
+                <input type="hidden" name="dir" value="up">
+                <button type="submit" class="btn btn-sm btn-outline-secondary" {{if eq $i 0}}disabled{{end}}><i class="bi bi-arrow-up"></i></button>
+              </form>
+              <form method="post" action="/settings/statuses/{{$st.ID}}/reorder" class="d-inline">
+                <input type="hidden" name="dir" value="down">
+                <button type="submit" class="btn btn-sm btn-outline-secondary" {{if eq (add $i 1) (len $.Statuses)}}disabled{{end}}><i class="bi bi-arrow-down"></i></button>
+              </form>
+            </td>
+            <td><span class="badge text-bg-{{$st.Color}}">{{$st.Name}}</span></td>
+            <td>
+              <form method="post" action="/settings/statuses/{{$st.ID}}" class="d-flex gap-2 align-items-center">
+                <input type="text" class="form-control form-control-sm" name="name" value="{{$st.Name}}" style="max-width:160px" required>
+                <select class="form-select form-select-sm" name="color" style="max-width:130px">
+                  {{range (list "primary" "secondary" "success" "danger" "warning" "info" "dark")}}
+                  <option value="{{.}}" {{if eq . $st.Color}}selected{{end}}>{{.}}</option>
+                  {{end}}
+                </select>
+                <button type="submit" class="btn btn-sm btn-outline-secondary">Save</button>
+              </form>
+            </td>
+            <td>
+              <form method="post" action="/settings/statuses/{{$st.ID}}/delete" onsubmit="return confirm('Delete this status?')">
+                <button type="submit" class="btn btn-sm btn-outline-danger">Delete</button>
+              </form>
+            </td>
+          </tr>
+          {{end}}
+        </tbody>
+      </table>
+    </div>
+    <div class="card-body border-top">
+      <h6>Add Status</h6>
+      <form method="post" action="/settings/statuses" class="d-flex gap-2 align-items-end">
+        <div>
+          <label class="form-label small mb-1">Name</label>
+          <input type="text" class="form-control form-control-sm" name="name" required>
+        </div>
+        <div>
+          <label class="form-label small mb-1">Color</label>
+          <select class="form-select form-select-sm" name="color">
+            {{range (list "primary" "secondary" "success" "danger" "warning" "info" "dark")}}<option value="{{.}}">{{.}}</option>{{end}}
+          </select>
+        </div>
+        <button type="submit" class="btn btn-sm btn-primary">Add</button>
+      </form>
+    </div>
+  </div>
+</div>
+{{end}}