Batch 10 explainability: surface trajectory fields and reason_tags in output

- Add deception_score, tunnel_score, release_consistency_score,
trajectory_sample_size to output row
- Add traj_hit_boost, traj_hr_boost, traj_tb2p_boost stubs (safe .get())
- Merge traj_adj reason_tags[:1] into simulator reason_tags (max 5 total)
- No logic, math, or weighting changes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

models/live_fair_simulator_v3.py

@@ -460,6 +460,7 @@ def build_upcoming_simulated_rows(
             pitcher_adj["reason_tags"][:2]
             + context_adj["reason_tags"][:2]
             + bullpen_adj["reason_tags"][:2]
+            + traj_adj.get("reason_tags", [])[:1]
         )
 
         if batter_features.get("ev90") is not None:
@@ -521,6 +522,14 @@ def build_upcoming_simulated_rows(
                 "rolling_pitch_extension_sample_size": pitcher_adj.get("rolling_pitch_extension_sample_size"),
                 "rolling_pitch_pfx_x_sample_size": pitcher_adj.get("rolling_pitch_pfx_x_sample_size"),
                 "rolling_pitch_pfx_z_sample_size": pitcher_adj.get("rolling_pitch_pfx_z_sample_size"),
+
+                "deception_score": trajectory_row.get("deception_score"),
+                "tunnel_score": trajectory_row.get("tunnel_score"),
+                "release_consistency_score": trajectory_row.get("release_consistency_score"),
+                "trajectory_sample_size": trajectory_row.get("trajectory_sample_size"),
+                "traj_hit_boost": traj_adj.get("traj_hit_boost"),
+                "traj_hr_boost": traj_adj.get("traj_hr_boost"),
+                "traj_tb2p_boost": traj_adj.get("traj_tb2p_boost"),
             }
         )