Agent-Persona auf File-Basis umgestellt (IDENTITY.md, SOUL.md, USER.md)

- Persona/Instructions DB-Felder aus AgentRecord, DB-Queries, API und Frontend entfernt
- SystemPromptBuilder liest jetzt IDENTITY.md + SOUL.md aus data/agents/{agentId}/
- Globale USER.md aus data/ wird in jeden System-Prompt injiziert
- MemoryService.DataDir als public Property exponiert
- Denker: IDENTITY.md + SOUL.md erstellt
- Meleki: Migrations-Vorlagen unter migration/meleki/ angelegt
- USER.md global unter publish/data/ erstellt

Endpoints/AgentEndpoint.cs

@@ -52,8 +52,6 @@ public static class AgentEndpoint
             Avatar = imageService.ResizeDataUrl(avatarRaw),
             Description = body.TryGetProperty("description", out var d) ? d.GetString() : null,
             Model = body.TryGetProperty("model", out var m) ? m.GetString() ?? "sonnet" : "sonnet",
-            Persona = body.TryGetProperty("persona", out var p) ? p.GetString() : null,
-            Instructions = body.TryGetProperty("instructions", out var i) ? i.GetString() : null,
             ToolChoice = body.TryGetProperty("toolChoice", out var tc) ? tc.GetString() ?? "any" : "any",
             CustomCommands = customCommands,
             AutoCommit = body.TryGetProperty("autoCommit", out var ac) && ac.GetBoolean()
@@ -77,8 +75,6 @@ public static class AgentEndpoint
         if (body.TryGetProperty("avatar", out var av)) agent.Avatar = imageService.ResizeDataUrl(av.GetString());
         if (body.TryGetProperty("description", out var d)) agent.Description = d.GetString();
         if (body.TryGetProperty("model", out var m)) agent.Model = m.GetString();
-        if (body.TryGetProperty("persona", out var p)) agent.Persona = p.GetString();
-        if (body.TryGetProperty("instructions", out var i)) agent.Instructions = i.GetString();
         if (body.TryGetProperty("toolChoice", out var tc)) agent.ToolChoice = tc.GetString();
         if (body.TryGetProperty("customCommands", out var cc))
             agent.CustomCommands = cc.ValueKind == JsonValueKind.Null ? null : cc.GetRawText();

Endpoints/ChatEndpoint.cs

@@ -79,7 +79,8 @@ public static class ChatEndpoint
 
         var markedMessages = await db.GetMarkedMessages(sessionId);
         var agentMemoryDir = memoryService.GetAgentMemoryDir(agent.AgentId);
-        var systemPromptText = SystemPromptBuilder.Build(agent, session, markedMessages, memoryService, agentMemoryDir);
+        var dataDir = memoryService.DataDir;
+        var systemPromptText = SystemPromptBuilder.Build(agent, session, markedMessages, memoryService, agentMemoryDir, dataDir);
 
         var chainId = Guid.NewGuid().ToString("N");
 

Endpoints/SessionEndpoint.cs

@@ -124,7 +124,8 @@ public static class SessionEndpoint
 
         var markedMessages = await db.GetMarkedMessages(sessionId);
         var agentMemoryDir = memoryService.GetAgentMemoryDir(agent.AgentId);
-        var systemPrompt = SystemPromptBuilder.Build(agent, session, markedMessages, memoryService, agentMemoryDir);
+        var dataDir = memoryService.DataDir;
+        var systemPrompt = SystemPromptBuilder.Build(agent, session, markedMessages, memoryService, agentMemoryDir, dataDir);
 
         ctx.Response.ContentType = "text/plain; charset=utf-8";
         await ctx.Response.WriteAsync(systemPrompt);