feat: filter system accounts from leaderboard, add primary_ci field

- SYSTEM_ACCOUNTS set excludes pipeline/unknown/teleo-agents from /api/contributors/list
- primary_ci field: action_ci.total when available, else role-based ci_score
- action_ci included in list endpoint for each contributor

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

diagnostics/contributor_profile_api.py

@@ -8,6 +8,7 @@ import subprocess
 from datetime import datetime
 
 DB_PATH = os.environ.get("PIPELINE_DB", "/opt/teleo-eval/pipeline/pipeline.db")
+SYSTEM_ACCOUNTS = {"pipeline", "unknown", "teleo-agents", "teleo pipeline"}
 CODEX_PATH = "/opt/teleo-eval/workspaces/main"
 
 CI_WEIGHTS = {
@@ -263,6 +264,7 @@ def get_contributor_profile(handle):
             "display_name": data.get("display_name"),
             "ci_score": ci_score,
             "action_ci": action_ci,
+            "primary_ci": action_ci["total"] if action_ci else ci_score,
             "hero_badge": hero_badge,
             "badges": [{"name": b, **BADGE_DEFS.get(b, {})} for b in badges],
             "joined": data.get("first_contribution"),
@@ -333,11 +335,17 @@ async def handle_contributors_list(request):
         contributors = []
         for r in rows:
             data = dict(r)
+            if data["handle"].lower() in SYSTEM_ACCOUNTS:
+                continue
             ci = _compute_ci(data)
+            action_ci = _get_action_ci(data["handle"], conn)
+            action_total = action_ci["total"] if action_ci else 0.0
             contributors.append({
                 "handle": data["handle"],
                 "display_name": data["display_name"],
                 "ci_score": ci,
+                "action_ci": action_total,
+                "primary_ci": action_total if action_total > 0 else ci,
                 "claims_merged": data["claims_merged"],
                 "first_contribution": data["first_contribution"],
                 "last_contribution": data["last_contribution"],