Jul 2nd - Add password strength, suggestion when create/edit user

app/templates/admin/edit_user.html

@@ -2,6 +2,29 @@
 {% block title %}Edit User{% endblock %}
 {% block page_title %}Edit User{% endblock %}
 
+{% block head %}
+<style>
+  /* ── Password rule checklist ── */
+  .pw-rules{
+    margin-top:8px;display:grid;grid-template-columns:1fr 1fr;gap:3px 12px;
+    background:var(--bg);border:1px solid var(--border);border-radius:8px;
+    padding:10px 12px;
+  }
+  .pw-rule{
+    display:flex;align-items:center;gap:5px;
+    font-size:11.5px;color:var(--muted);
+    transition:color .2s;
+  }
+  .pw-rule .ri{
+    font-size:13px;width:14px;text-align:center;
+    transition:color .2s, transform .15s;
+  }
+  .pw-rule.met{color:var(--success);}
+  .pw-rule.met .ri{color:var(--success);transform:scale(1.1);}
+  .pw-rule.unmet .ri{color:var(--border2);}
+</style>
+{% endblock %}
+
 {% block content %}
 <div class="row justify-content-center">
   <div class="col-lg-6">
@@ -50,6 +73,33 @@
               <label class="form-label">Confirm Password</label>
               <input type="password" class="form-control" id="confirm-password" name="confirm_password" placeholder="Repeat new password"/>
             </div>
+            <div class="col-12">
+              <!-- Password strength bar -->
+              <div style="height:4px;background:var(--border);border-radius:2px;margin-top:4px;" id="pw-strength-track">
+                <div id="pw-strength-bar" style="height:100%;border-radius:2px;width:0%;transition:width .3s,background .3s;"></div>
+              </div>
+              <div id="pw-strength-label" style="font-size:11px;color:var(--muted);margin-top:4px;"></div>
+
+              <!-- Rule checklist — mirrors server-side validate_password() rules -->
+              <div class="pw-rules" id="pw-rules-box" style="display:none;">
+                <div class="pw-rule unmet" id="pw-rule-len">
+                  <span class="ri"><i class="bi bi-circle"></i></span>
+                  <span>8+ characters</span>
+                </div>
+                <div class="pw-rule unmet" id="pw-rule-upper">
+                  <span class="ri"><i class="bi bi-circle"></i></span>
+                  <span>Uppercase letter</span>
+                </div>
+                <div class="pw-rule unmet" id="pw-rule-digit">
+                  <span class="ri"><i class="bi bi-circle"></i></span>
+                  <span>Number</span>
+                </div>
+                <div class="pw-rule unmet" id="pw-rule-special">
+                  <span class="ri"><i class="bi bi-circle"></i></span>
+                  <span>Special character</span>
+                </div>
+              </div>
+            </div>
           </div>
           <div class="d-flex gap-2 mt-4">
             <button type="submit" class="btn btn-primary"><i class="bi bi-check2 me-2"></i>Save</button>
@@ -64,6 +114,67 @@
 
 {% block scripts %}
 <script>
+// ── Password strength + rule checklist ────────────────────────────────────────
+// Mirrors server-side validate_password() rules in validation_service.py.
+// Any change to the server rules must be reflected here too.
+const PW_RULES = {
+  len    : pw => pw.length >= 8,
+  upper  : pw => /[A-Z]/.test(pw),
+  digit  : pw => /\d/.test(pw),
+  special: pw => /[!@#$%^&*()\-_=+\[\]{};:'",.<>?/\\|`~]/.test(pw),
+};
+
+function setPwRule(id, met) {
+  const el = document.getElementById('pw-rule-' + id);
+  if (!el) return;
+  el.className = 'pw-rule ' + (met ? 'met' : 'unmet');
+  el.querySelector('.ri').innerHTML = met
+    ? '<i class="bi bi-check-circle-fill"></i>'
+    : '<i class="bi bi-circle"></i>';
+}
+
+document.getElementById('new-password').addEventListener('input', function () {
+  const val = this.value;
+
+  const bar   = document.getElementById('pw-strength-bar');
+  const label = document.getElementById('pw-strength-label');
+  const rules = document.getElementById('pw-rules-box');
+
+  if (val.length === 0) {
+    bar.style.width = '0%';
+    label.textContent = '';
+    rules.style.display = 'none';
+    return;
+  }
+
+  rules.style.display = 'grid';
+  setPwRule('len',     PW_RULES.len(val));
+  setPwRule('upper',   PW_RULES.upper(val));
+  setPwRule('digit',   PW_RULES.digit(val));
+  setPwRule('special', PW_RULES.special(val));
+
+  let score = 0;
+  if (PW_RULES.len(val))     score++;
+  if (PW_RULES.upper(val))   score++;
+  if (PW_RULES.digit(val))   score++;
+  if (PW_RULES.special(val)) score++;
+  if (val.length >= 16)      score++;   // bonus for extra length
+
+  const levels = [
+    { pct: '20%',  bg: '#dc2626', text: 'Very weak'  },
+    { pct: '40%',  bg: '#d97706', text: 'Weak'        },
+    { pct: '60%',  bg: '#ca8a04', text: 'Fair'        },
+    { pct: '80%',  bg: '#16a34a', text: 'Strong'      },
+    { pct: '100%', bg: '#059669', text: 'Very strong' },
+  ];
+  const lvl = levels[Math.min(score - 1, 4)] || levels[0];
+  bar.style.width      = lvl.pct;
+  bar.style.background = lvl.bg;
+  label.textContent    = lvl.text;
+  label.style.color    = lvl.bg;
+});
+
+// ── Client-side password match check before submit ────────────────────────────
 document.querySelector('form').addEventListener('submit', function (e) {
   const pw  = document.getElementById('new-password').value;
   const pw2 = document.getElementById('confirm-password').value;