feat: Enhance patent search and update research documentation

- Improve patent search service with expanded functionality
- Update PatentSearchPanel UI component
- Add new research_report.md
- Update experimental protocol, literature review, paper outline, and theoretical framework

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/App.tsx

@@ -489,6 +489,37 @@ function App() {
                 availableModels={availableModels}
               />
             )}
+            {activeTab === 'patent' && (
+              <div style={{ padding: 16 }}>
+                <Typography.Title level={5} style={{ marginBottom: 16 }}>
+                  <FileSearchOutlined style={{ marginRight: 8 }} />
+                  Patent Search Info
+                </Typography.Title>
+                <Typography.Paragraph type="secondary" style={{ fontSize: 12 }}>
+                  Search patents using the Lens.org API to find prior art and similar inventions.
+                </Typography.Paragraph>
+                <Typography.Title level={5} style={{ marginTop: 24, marginBottom: 12 }}>
+                  How to Use
+                </Typography.Title>
+                <Typography.Paragraph style={{ fontSize: 12 }}>
+                  <ol style={{ paddingLeft: 16, margin: 0 }}>
+                    <li style={{ marginBottom: 8 }}>Click a generated description on the left to load it into the search box</li>
+                    <li style={{ marginBottom: 8 }}>Edit the description to refine your search query</li>
+                    <li style={{ marginBottom: 8 }}>Click "Search Patents" to find similar patents</li>
+                    <li style={{ marginBottom: 8 }}>Results appear on the right - click to view on Lens.org</li>
+                  </ol>
+                </Typography.Paragraph>
+                <Typography.Title level={5} style={{ marginTop: 24, marginBottom: 12 }}>
+                  Result Interpretation
+                </Typography.Title>
+                <Typography.Paragraph type="secondary" style={{ fontSize: 12 }}>
+                  <strong>Many results:</strong> Query may overlap with existing prior art - consider making it more specific.
+                </Typography.Paragraph>
+                <Typography.Paragraph type="secondary" style={{ fontSize: 12 }}>
+                  <strong>Few/no results:</strong> Potentially novel concept - good candidate for further exploration.
+                </Typography.Paragraph>
+              </div>
+            )}
             {activeTab === 'deduplication' && (
               <div style={{ padding: 16 }}>
                 <Typography.Title level={5} style={{ marginBottom: 16 }}>