feat: optimize UI text for better space utilization

- Compress Smart Chunking Tips from bullet list to single line
- Remove redundant splitter description text in method selection
- Improve overall modal compactness while maintaining clarity

Changes:
- SplitterSelectionModal: Simplified chunking tips to one informative line
- MethodSelectionModal: Removed 'Using X for chunking' redundant text

frontend/src/components/shared/modals/MethodSelectionModal.tsx

@@ -155,10 +155,7 @@ export function MethodSelectionModal({
             Select Extraction Method
           </DialogTitle>
           <DialogDescription>
-            Using <strong>{getSplitterDisplayName(selectedSplitter)}</strong>{" "}
-            for chunking.
-            <br />
-            Now choose the extraction method for knowledge graph generation:
+            Choose the extraction method for knowledge graph generation:
           </DialogDescription>
         </DialogHeader>
 

frontend/src/components/shared/modals/SplitterSelectionModal.tsx

@@ -287,26 +287,11 @@ export function SplitterSelectionModal({
               </div>
 
               <div className="bg-muted/30 rounded-lg p-3">
-                <div className="flex items-start gap-2">
-                  <Brain className="h-4 w-4 text-blue-500 mt-0.5" />
-                  <div className="text-xs text-muted-foreground">
-                    <p className="font-medium text-foreground mb-1">
-                      Smart Chunking Tips:
-                    </p>
-                    <ul className="space-y-1">
-                      <li>
-                        • Larger chunks preserve more context but use more
-                        tokens
-                      </li>
-                      <li>
-                        • Smaller chunks are faster but may lose semantic
-                        connections
-                      </li>
-                      <li>
-                        • Default values are optimized for most agent traces
-                      </li>
-                    </ul>
-                  </div>
+                <div className="flex items-center gap-2">
+                  <Brain className="h-4 w-4 text-blue-500" />
+                  <p className="text-xs text-muted-foreground">
+                    <span className="font-medium text-foreground">Smart Chunking:</span> Balance context preservation with processing speed - defaults optimized for most traces.
+                  </p>
                 </div>
               </div>
             </div>