feat(codeagent-wrapper): add multi-agent support with yolo mode

- Add --agent parameter for agent-based backend/model resolution
- Add --prompt-file parameter for agent prompt injection
- Add opencode backend support with JSON output parsing
- Add yolo field in agent config for auto-enabling dangerous flags
  - claude: --dangerously-skip-permissions
  - codex: --dangerously-bypass-approvals-and-sandbox
- Add develop agent for code development tasks
- Add omo skill for multi-agent orchestration with Sisyphus coordinator
- Bump version to 5.5.0

Generated with SWE-Agent.ai

Co-Authored-By: SWE-Agent.ai <noreply@swe-agent.ai>

codeagent-wrapper/parser.go

@@ -87,6 +87,18 @@ type UnifiedEvent struct {
 	Content string `json:"content,omitempty"`
 	Delta   *bool  `json:"delta,omitempty"`
 	Status  string `json:"status,omitempty"`
+
+	// Opencode-specific fields (camelCase sessionID)
+	OpencodeSessionID string          `json:"sessionID,omitempty"`
+	Part              json.RawMessage `json:"part,omitempty"`
+}
+
+// OpencodePart represents the part field in opencode events
+type OpencodePart struct {
+	Type      string `json:"type"`
+	Text      string `json:"text,omitempty"`
+	Reason    string `json:"reason,omitempty"`
+	SessionID string `json:"sessionID,omitempty"`
 }
 
 // ItemContent represents the parsed item.text field for Codex events
@@ -120,9 +132,10 @@ func parseJSONStreamInternal(r io.Reader, warnFn func(string), infoFn func(strin
 	totalEvents := 0
 
 	var (
-		codexMessage  string
-		claudeMessage string
-		geminiBuffer  strings.Builder
+		codexMessage    string
+		claudeMessage   string
+		geminiBuffer    strings.Builder
+		opencodeMessage strings.Builder
 	)
 
 	for {
@@ -172,6 +185,37 @@ func parseJSONStreamInternal(r io.Reader, warnFn func(string), infoFn func(strin
 			isClaude = true
 		}
 		isGemini := (event.Type == "init" && event.SessionID != "") || event.Role != "" || event.Delta != nil || event.Status != ""
+		isOpencode := event.OpencodeSessionID != "" && len(event.Part) > 0
+
+		// Handle Opencode events first (most specific detection)
+		if isOpencode {
+			if threadID == "" {
+				threadID = event.OpencodeSessionID
+			}
+
+			var part OpencodePart
+			if err := json.Unmarshal(event.Part, &part); err != nil {
+				warnFn(fmt.Sprintf("Failed to parse opencode part: %s", err.Error()))
+				continue
+			}
+
+			// Extract sessionID from part if available
+			if part.SessionID != "" && threadID == "" {
+				threadID = part.SessionID
+			}
+
+			infoFn(fmt.Sprintf("Parsed Opencode event #%d type=%s part_type=%s", totalEvents, event.Type, part.Type))
+
+			if event.Type == "text" && part.Text != "" {
+				opencodeMessage.WriteString(part.Text)
+				notifyMessage()
+			}
+
+			if part.Type == "step-finish" && part.Reason == "stop" {
+				notifyComplete()
+			}
+			continue
+		}
 
 		// Handle Codex events
 		if isCodex {
@@ -284,6 +328,8 @@ func parseJSONStreamInternal(r io.Reader, warnFn func(string), infoFn func(strin
 	}
 
 	switch {
+	case opencodeMessage.Len() > 0:
+		message = opencodeMessage.String()
 	case geminiBuffer.Len() > 0:
 		message = geminiBuffer.String()
 	case claudeMessage != "":