fix(ombi): resolve TV request status, user, and date display (Issue #53)

Ombi's TV API nests all request data (requestedUser, approved, available,
denied, requested, requestedDate) inside childRequests[] sub-objects.
The application previously only inspected top-level properties, causing
TV shows to consistently display 'unknown' status, 'unknown' user, and
no request date.

Changes:
- OmbiRetriever._hydrateRequest(): hydrate requestedUser on each
  childRequests entry and promote requestedDate to top level
- getRequestStatus() (server + client): aggregate status flags from
  childRequests[] when top-level properties are absent
- Client date display: fallback to childRequests[0].requestedDate
- Add 18 unit tests covering childRequests hydration, status
  aggregation, and date promotion

Closes #53

tests/unit/ombiFilters.test.js

@@ -58,6 +58,40 @@ describe('getRequestStatus', () => {
     expect(getRequestStatus(makeRequest({ denied: true, approved: true }))).toBe('denied');
     expect(getRequestStatus(makeRequest({ approved: true, requested: true }))).toBe('approved');
   });
+
+  it('returns available from childRequests when top-level is absent (TV)', () => {
+    expect(getRequestStatus({ childRequests: [{ available: true }] })).toBe('available');
+  });
+
+  it('returns denied from childRequests when top-level is absent (TV)', () => {
+    expect(getRequestStatus({ childRequests: [{ denied: true }] })).toBe('denied');
+  });
+
+  it('returns approved from childRequests when top-level is absent (TV)', () => {
+    expect(getRequestStatus({ childRequests: [{ approved: true }] })).toBe('approved');
+  });
+
+  it('returns pending from childRequests when top-level is absent (TV)', () => {
+    expect(getRequestStatus({ childRequests: [{ requested: true }] })).toBe('pending');
+  });
+
+  it('follows priority inside childRequests: available > denied > approved > pending', () => {
+    expect(getRequestStatus({ childRequests: [
+      { available: true, denied: true },
+      { approved: true }
+    ]})).toBe('available');
+    expect(getRequestStatus({ childRequests: [
+      { denied: true, approved: true },
+      { requested: true }
+    ]})).toBe('denied');
+    expect(getRequestStatus({ childRequests: [
+      { approved: true, requested: true }
+    ]})).toBe('approved');
+  });
+
+  it('returns unknown for TV request with empty childRequests', () => {
+    expect(getRequestStatus({ childRequests: [] })).toBe('unknown');
+  });
 });
 
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