I have refactored the SQL Explorer functionality into its own blueprint (routes/sql_explorer.py) with a /sql URL prefix. This involved moving the relevant routes from app.py, registering the new blueprint, removing the old routes, updating url_for calls in the templates, and documenting the change in the changelog.

Here is a conventional commit message summarizing the changes:

```
feat: Refactor SQL Explorer into blueprint

- Moved SQL Explorer routes (view explorer, save/load/execute/delete queries, view schema, plot queries) from `app.py` into a new blueprint at `routes/sql_explorer.py`.
- Added `/sql` URL prefix to the blueprint.
- Registered the new `sql_explorer_bp` blueprint in `app.py`.
- Removed the original SQL Explorer route definitions from `app.py`.
- Updated `url_for` calls in relevant templates (`sql_explorer.html`, `partials/sql_explorer/sql_query.html`, `base.html`) to reference the new blueprint endpoints (e.g., `sql_explorer.sql_explorer`).
- Updated `templates/changelog/changelog.html` to document this refactoring.
```

templates/changelog/changelog.html

@@ -10,6 +10,18 @@
         <div class="prose max-w-none">
             <p>Updates and changes to the site will be documented here, with the most recent changes listed first.</p>
 
+            <!-- New Entry for SQL Explorer Refactoring -->
+            <hr class="my-6">
+            <h2 class="text-xl font-semibold mb-2">March 31, 2025</h2>
+            <ul class="list-disc pl-5 space-y-1">
+                <li>Refactored SQL Explorer functionality into its own blueprint (`routes/sql_explorer.py` with `/sql`
+                    prefix).</li>
+                <li>Moved SQL Explorer logic from `features/sql_explorer.py` into the blueprint for better
+                    encapsulation.</li>
+                <li>Updated relevant `url_for` calls in templates to use the new `sql_explorer.` prefix.</li>
+            </ul>
+
+
             <!-- New Entry for Workout Refactoring -->
             <hr class="my-6">
             <h2 class="text-xl font-semibold mb-2">March 31, 2025</h2>