fix(#1974): pair token cols by array position (argus review)

hive-c0re/src/otel_migrate.rs

@@ -42,13 +42,13 @@ const TERMINAL_TYPE: &str = "non-interactive";
 /// into reasonably-sized OTLP requests rather than one huge body.
 const MAX_DATAPOINTS_PER_POST: usize = 1000;
 
-/// `claude_code.token.usage` `type` attribute value paired with the
-/// `turn_stats` column it maps to (column index in the SELECT below).
+/// `claude_code.token.usage` `type` attribute value paired with its
+/// position in the per-row `cols` array (built in row order below).
 const TOKEN_TYPES: &[(&str, usize)] = &[
-    ("input", 3),
-    ("output", 4),
-    ("cacheRead", 5),
-    ("cacheCreation", 6),
+    ("input", 0),
+    ("output", 1),
+    ("cacheRead", 2),
+    ("cacheCreation", 3),
 ];
 
 /// Datapoints collected from one agent's stats db, split by metric.
@@ -201,8 +201,8 @@ fn collect_agent_points(db: &Path, id_prefix: &str) -> Result<AgentPoints> {
         }));
 
         // token.usage: per (type, model, session.id) running total.
-        for &(type_, idx) in TOKEN_TYPES {
-            let val = cols[idx - 3];
+        for &(type_, pos) in TOKEN_TYPES {
+            let val = cols[pos];
             if val <= 0 {
                 continue;
             }