Rename app id from occweb to extended_occweb, prep for App Store

Nextcloud's app id "occweb" is effectively unavailable for a new store
listing: the original Adphi/occweb still owns that App Store slot
(stale, v0.2.3), and el-choco/occweb_v2 has since published a
same-lineage rewrite under its own id. Rather than fight over the
"occweb" name, publish this fork under its own id, matching the
<name> this app has always had: "Extended OCC Web".

Renames every place the literal app id is used: info.xml <id> and the
auto-generated navigation <route>, script()/style() registrations in
templates/index.php, the TemplateResponse app name in
OccController::index(), the /apps/... base URL in js/index.js, and the
'app' log context tag in DbController.php. The GitHub repo name and
its <website>/<bugs>/<repository>/<screenshot> links are unaffected -
those identify the repo, not the Nextcloud app.

Docs (README, INSTALL-AIO.md, install.sh) updated to clone into and
reference an "extended_occweb" directory, since Nextcloud requires the
app folder name to match its id - a plain `git clone` of this repo no
longer produces a correctly-named install directory on its own.

Version bump to 0.4.0 given the scope (breaking change for anyone who
already deployed under the old "occweb" id - requires disable+remove
of the old app and a fresh enable under the new id, not an in-place
upgrade).

lib/Controller/DbController.php

@@ -189,8 +189,8 @@ class DbController extends Controller
         // Audit: log the fact that execution was attempted BEFORE any checks,
         // so blocked/rejected queries are recorded in the log too, not just
         // the ones that succeeded.
-        $this->logger->warning('[occweb] SQL submitted by {user}: {sql}', [
-            'app' => 'occweb',
+        $this->logger->warning('[extended_occweb] SQL submitted by {user}: {sql}', [
+            'app' => 'extended_occweb',
             'user' => $user->getUID(),
             'sql' => $sql,
         ]);
@@ -207,8 +207,8 @@ class DbController extends Controller
         foreach ($queries as $query) {
             $forbidden = $this->findForbiddenConstruct($query);
             if ($forbidden !== null) {
-                $this->logger->error('[occweb] Blocked forbidden construct ({construct}) from {user}: {sql}', [
-                    'app' => 'occweb',
+                $this->logger->error('[extended_occweb] Blocked forbidden construct ({construct}) from {user}: {sql}', [
+                    'app' => 'extended_occweb',
                     'construct' => $forbidden,
                     'user' => $user->getUID(),
                     'sql' => $sql,
@@ -277,8 +277,8 @@ class DbController extends Controller
             $this->db->beginTransaction();
             $transactionStarted = true;
         } catch (\Exception $e) {
-            $this->logger->warning('[occweb] beginTransaction() failed, proceeding without an explicit transaction: {error}', [
-                'app' => 'occweb',
+            $this->logger->warning('[extended_occweb] beginTransaction() failed, proceeding without an explicit transaction: {error}', [
+                'app' => 'extended_occweb',
                 'error' => $e->getMessage(),
             ]);
         }
@@ -353,8 +353,8 @@ class DbController extends Controller
                         // permanently applied — we deliberately do NOT set
                         // rolledBack to true, since that would be untrue.
                         $rollbackFailed = true;
-                        $this->logger->warning('[occweb] rollBack() failed after an error — earlier statements in this batch may already be permanently applied: {error}', [
-                            'app' => 'occweb',
+                        $this->logger->warning('[extended_occweb] rollBack() failed after an error — earlier statements in this batch may already be permanently applied: {error}', [
+                            'app' => 'extended_occweb',
                             'error' => $rollbackError->getMessage(),
                         ]);
                     }
@@ -371,8 +371,8 @@ class DbController extends Controller
                 // a DDL statement on MySQL/MariaDB) — the effects are
                 // already saved, this isn't an error in executing the batch
                 // itself.
-                $this->logger->info('[occweb] commit() had nothing to commit (likely auto-committed by a DDL statement): {error}', [
-                    'app' => 'occweb',
+                $this->logger->info('[extended_occweb] commit() had nothing to commit (likely auto-committed by a DDL statement): {error}', [
+                    'app' => 'extended_occweb',
                     'error' => $e->getMessage(),
                 ]);
             }

lib/Controller/OccController.php

@@ -70,7 +70,7 @@ class OccController extends Controller
   public function index()
   {
     if ($err = $this->requireAdmin()) return $err;
-    return new TemplateResponse('occweb', 'index');
+    return new TemplateResponse('extended_occweb', 'index');
   }
 
   /**