Add mode-specific experiment images and update HTML structure

Added 80 experiment folders with fulltrajectory mode variations:
- _fulltrajectory_false: Classical RTC with chunked trajectory
- _fulltrajectory_true: Full trajectory without chunking

Updated HTML to only show steps 10, 20, 50, 100 (steps with both modes).
Fixed 404 errors by ensuring all mode-specific folders are present.

Generated with Claude Code

index.html

@@ -197,7 +197,7 @@
         </p>
         <p>
           <strong>Models tested:</strong> PI0.5, SmolVLA<br>
-          <strong>Flow matching steps:</strong> 2, 5, 10, 20, 50, 100<br>
+          <strong>Flow matching steps:</strong> 10, 20, 50, 100<br>
           <strong>Sigma_d values:</strong> 0.1, 0.2, 0.5, 0.8, 1.0, 1.2, 1.5<br>
           <strong>Modes:</strong> Classical RTC (fulltrajectory=false), Full Trajectory (fulltrajectory=true)
         </p>
@@ -325,18 +325,15 @@
   let currentMode = 'classical'; // 'classical' or 'fulltrajectory'
 
   // Experiment data structure
+  // Only steps 10, 20, 50, 100 have fulltrajectory mode experiments
   const experiments = {
     pi05: {
-      2: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
-      5: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       10: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       20: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       50: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       100: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5']
     },
     smolvla: {
-      2: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
-      5: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       10: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       20: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],
       50: ['0.1', '0.2', '0.5', '0.8', '1.0', '1.2', '1.5'],