Refactor case detail into a dedicated page

This commit restructures the web interface for case details. The
previous `/web/cases/{case_id}` route, which previously showed both the
case summary and its recordings, has been split into two distinct pages:

- `/web/cases/{case_id}`: This page now displays the overall case
  information, including the document if available.
- `/web/cases/{case_id}/recordings`: This new page is dedicated to
  listing and displaying individual recordings within a case.

This change improves the organization and clarity of the web UI,
allowing for more focused views of case data. Additionally, the
`case_detail.html` and `document.html` templates have been removed as
their functionality is now handled by the new `case_page.html` and the
upcoming document rendering logic. The `cases.html` template has also
been removed, indicating a shift towards more granular page views.

server/src/routes/mod.rs

@@ -28,7 +28,11 @@ pub fn api_router() -> Router<AppState> {
         )
         .route("/web/logout", post(login::handle_logout))
         .route("/web/cases", get(user_web::handle_my_cases))
-        .route("/web/cases/{case_id}", get(user_web::handle_case_detail))
+        .route("/web/cases/{case_id}", get(user_web::handle_case_page))
+        .route(
+            "/web/cases/{case_id}/recordings",
+            get(user_web::handle_case_recordings),
+        )
         .route(
             "/web/cases/{case_id}/analyze",
             post(case_actions::handle_analyze_case),
@@ -46,11 +50,6 @@ pub fn api_router() -> Router<AppState> {
             post(case_actions::handle_undo_delete),
         )
         .route("/web/cases/bulk", post(bulk::handle_bulk_action))
-        .route(
-            "/web/cases/{case_id}/document",
-            get(case_actions::handle_document_view),
-        )
-        .route("/web/", get(web::handle_case_list))
         .route(
             "/web/audio/{user}/{case_id}/{filename}",
             get(web::handle_audio),