feat: migrate relay integration to relaycast Rust SDK

.trajectories/completed/2026-02/traj_dnxtht96w13o.json

@@ -0,0 +1,54 @@
+{
+  "id": "traj_dnxtht96w13o",
+  "version": 1,
+  "task": {
+    "title": "Make doctor tolerant of missing better-sqlite3"
+  },
+  "status": "completed",
+  "startedAt": "2026-02-10T12:22:01.414Z",
+  "agents": [
+    {
+      "name": "default",
+      "role": "lead",
+      "joinedAt": "2026-02-21T16:49:05.978Z"
+    }
+  ],
+  "chapters": [
+    {
+      "id": "chap_k1cmfb2wpa55",
+      "title": "Work",
+      "agentName": "default",
+      "startedAt": "2026-02-21T16:49:05.978Z",
+      "events": [
+        {
+          "ts": 1771692545979,
+          "type": "decision",
+          "content": "Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths: Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths",
+          "raw": {
+            "question": "Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths",
+            "chosen": "Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths",
+            "alternatives": [],
+            "reasoning": "Eliminates direct endpoint shaping and keeps runtime behavior aligned with SDK contracts"
+          },
+          "significance": "high"
+        }
+      ],
+      "endedAt": "2026-02-21T16:49:12.107Z"
+    }
+  ],
+  "commits": [],
+  "filesChanged": [],
+  "projectId": "/data/repos/relay",
+  "tags": [],
+  "_trace": {
+    "startRef": "cc56420d6e17ed6c226b38cb0683d002ec04e990",
+    "endRef": "1de18c33b342008d0d4364e0bd19eb9ca9cf4fc6",
+    "traceId": "trace_5cvacavee6g9"
+  },
+  "completedAt": "2026-02-21T16:49:12.107Z",
+  "retrospective": {
+    "summary": "Migrated remaining broker Relaycast plumbing to SDK-first auth/bootstrap and event/channel mapping",
+    "approach": "Standard approach",
+    "confidence": 0.84
+  }
+}

.trajectories/completed/2026-02/traj_dnxtht96w13o.md

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+# Trajectory: Make doctor tolerant of missing better-sqlite3
+
+> **Status:** ✅ Completed
+> **Confidence:** 84%
+> **Started:** February 10, 2026 at 07:22 AM
+> **Completed:** February 21, 2026 at 11:49 AM
+
+---
+
+## Summary
+
+Migrated remaining broker Relaycast plumbing to SDK-first auth/bootstrap and event/channel mapping
+
+**Approach:** Standard approach
+
+---
+
+## Key Decisions
+
+### Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths
+- **Chose:** Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths
+- **Reasoning:** Eliminates direct endpoint shaping and keeps runtime behavior aligned with SDK contracts
+
+---
+
+## Chapters
+
+### 1. Work
+*Agent: default*
+
+- Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths: Shifted auth/bootstrap and channel/event handling to RelayCast SDK-first paths