feat(footer): help popover shows license state + Activate link

- Bump version to 3.0 (src/__init__.py).
- Switch support address to support@unalogix.com.
- Help popover now includes a License section that reads
  ``src.license.current_state()``:
  * When activated + valid: name + expiry date + days remaining.
  * Otherwise: "Not activated" + an ``Activate now →`` link
    pointing at ``./activate``.
  License-state queries are wrapped so a corrupted license file
  can't take the footer down — it falls through to the inactive
  branch.
- Popover HTML is now built in Python (so the license branch
  lives in one place) and passed to the JS as a single string.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/__init__.py

@@ -5,4 +5,4 @@ the Windows Inno Setup script, the macOS DMG packaging script, and
 the AppImage build. Bump here on release and CI propagates it.
 """
 
-__version__ = "1.0.0"
+__version__ = "3.0"

src/gui/components/_legacy.py

@@ -565,12 +565,58 @@ def render_sticky_footer() -> None:
     help_version = _html.escape(
         _t("footer.help_version").format(version=__version__)
     )
-    support_email = "support@datatools.app"
-    help_support = _html.escape(
-        _t("footer.help_support").format(email=support_email)
+    support_email = "support@unalogix.com"
+    help_support_text = _t("footer.help_support").format(email=support_email)
+    help_support_html = _html.escape(help_support_text).replace(
+        _html.escape(support_email),
+        f'<a href="mailto:{_html.escape(support_email)}">'
+        f'{_html.escape(support_email)}</a>',
     )
+    license_label = _html.escape(_t("footer.help_license_label"))
     help_dismiss = _html.escape(_t("footer.help_dismiss"))
 
+    # License section — read state and branch on activated/valid. The
+    # query is wrapped because a corrupted license file MUST NOT stop
+    # the footer from rendering; in that case we fall back to the
+    # "ask to activate" branch.
+    try:
+        from src.license import current_state as _license_state
+        state = _license_state()
+    except Exception:
+        state = None
+
+    if state is not None and state.activated and state.valid:
+        active_line = _t("footer.help_license_active").format(
+            name=state.name or state.email or "—",
+        )
+        expires_line = _t("footer.help_license_expires").format(
+            date=(state.expires_at or "")[:10],
+            days=state.days_remaining,
+        )
+        license_html = (
+            f'<div class="dt-help-row"><span class="dt-help-key">'
+            f'{license_label}:</span> {_html.escape(active_line)}</div>'
+            f'<div class="dt-help-row dt-help-sub">'
+            f'{_html.escape(expires_line)}</div>'
+        )
+    else:
+        inactive_line = _html.escape(_t("footer.help_license_inactive"))
+        activate_link = _html.escape(_t("footer.help_activate_link"))
+        license_html = (
+            f'<div class="dt-help-row"><span class="dt-help-key">'
+            f'{license_label}:</span> {inactive_line}</div>'
+            f'<div class="dt-help-row">'
+            f'<a href="./activate" target="_self">{activate_link}</a></div>'
+        )
+
+    popover_html = (
+        f'<div class="dt-help-title">{help_title}</div>'
+        f'<div class="dt-help-row">{help_version}</div>'
+        f'{license_html}'
+        f'<div class="dt-help-row">{help_support_html}</div>'
+        f'<button type="button" class="dt-help-dismiss">{help_dismiss}</button>'
+    )
+
     st.markdown(
         """
 <style>
@@ -646,6 +692,15 @@ def render_sticky_footer() -> None:
     margin: 0.15rem 0 !important;
     line-height: 1.4 !important;
 }
+#datatools-help-popover .dt-help-row.dt-help-sub {
+    color: rgb(90, 95, 110) !important;
+    font-size: 12px !important;
+    margin-left: 0.65rem !important;
+}
+#datatools-help-popover .dt-help-key {
+    color: rgb(90, 95, 110) !important;
+    font-weight: 500 !important;
+}
 #datatools-help-popover .dt-help-row a {
     color: rgb(0, 102, 204) !important;
     text-decoration: none !important;
@@ -678,11 +733,7 @@ def render_sticky_footer() -> None:
     var labels = {_json.dumps({
         "close": close_label,
         "help": help_label,
-        "help_title": help_title,
-        "help_version": help_version,
-        "help_support": help_support,
-        "help_dismiss": help_dismiss,
-        "support_email": support_email,
+        "popover_html": popover_html,
     })};
     function build(doc) {{
       var prev = doc.getElementById('datatools-sticky-footer');
@@ -710,14 +761,7 @@ def render_sticky_footer() -> None:
       var pop = doc.createElement('div');
       pop.id = 'datatools-help-popover';
       pop.hidden = true;
-      pop.innerHTML =
-        '<div class="dt-help-title">' + labels.help_title + '</div>' +
-        '<div class="dt-help-row">' + labels.help_version + '</div>' +
-        '<div class="dt-help-row">' + labels.help_support.replace(
-            labels.support_email,
-            '<a href="mailto:' + labels.support_email + '">' + labels.support_email + '</a>'
-        ) + '</div>' +
-        '<button type="button" class="dt-help-dismiss">' + labels.help_dismiss + '</button>';
+      pop.innerHTML = labels.popover_html;
 
       helpBtn.addEventListener('click', function (e) {{
         e.preventDefault();

src/i18n/packs/en.json

@@ -178,6 +178,11 @@
     "help_title": "DataTools",
     "help_version": "Version {version}",
     "help_support": "Support: {email}",
+    "help_license_label": "License",
+    "help_license_inactive": "Not activated",
+    "help_license_active": "{name}",
+    "help_license_expires": "Expires {date} ({days} days)",
+    "help_activate_link": "Activate now →",
     "help_dismiss": "Close"
   }
 }

src/i18n/packs/es.json

@@ -178,6 +178,11 @@
     "help_title": "DataTools",
     "help_version": "Versión {version}",
     "help_support": "Soporte: {email}",
+    "help_license_label": "Licencia",
+    "help_license_inactive": "No activada",
+    "help_license_active": "{name}",
+    "help_license_expires": "Caduca {date} ({days} días)",
+    "help_activate_link": "Activar ahora →",
     "help_dismiss": "Cerrar"
   }
 }