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

Services/DatabaseService.cs

@@ -148,8 +148,8 @@ public class DatabaseService
         agent.CreatedAt = now;
         agent.UpdatedAt = now;
         await conn.ExecuteAsync(@"
-            INSERT INTO agents (agent_id, name, avatar, description, model, persona, instructions, tool_choice, custom_commands, auto_commit, is_deleted, created_at, updated_at)
-            VALUES (@AgentId, @Name, @Avatar, @Description, @Model, @Persona, @Instructions, @ToolChoice, @CustomCommands, @AutoCommit, 0, @CreatedAt, @UpdatedAt)
+            INSERT INTO agents (agent_id, name, avatar, description, model, tool_choice, custom_commands, auto_commit, is_deleted, created_at, updated_at)
+            VALUES (@AgentId, @Name, @Avatar, @Description, @Model, @ToolChoice, @CustomCommands, @AutoCommit, 0, @CreatedAt, @UpdatedAt)
         ", agent);
         return agent;
     }
@@ -174,7 +174,7 @@ public class DatabaseService
         agent.UpdatedAt = DateTime.UtcNow.ToString("o");
         await conn.ExecuteAsync(@"
             UPDATE agents SET name = @Name, avatar = @Avatar, description = @Description,
-                model = @Model, persona = @Persona, instructions = @Instructions, tool_choice = @ToolChoice,
+                model = @Model, tool_choice = @ToolChoice,
                 custom_commands = @CustomCommands, auto_commit = @AutoCommit, updated_at = @UpdatedAt
             WHERE agent_id = @AgentId
         ", agent);

Services/MemoryService.cs

@@ -9,6 +9,8 @@ public class MemoryService
 {
     private readonly string _dataDir;
 
+    public string DataDir => _dataDir;
+
     public MemoryService(string dataDir)
     {
         _dataDir = dataDir;

Services/SystemPromptBuilder.cs

@@ -6,16 +6,38 @@ namespace Gott.Services;
 
 public static class SystemPromptBuilder
 {
-    public static string Build(AgentRecord agent, SessionRecord session, IEnumerable<MessageRecord> markedMessages = null, MemoryService memoryService = null, string agentMemoryDir = null)
+    public static string Build(AgentRecord agent, SessionRecord session, IEnumerable<MessageRecord> markedMessages = null, MemoryService memoryService = null, string agentMemoryDir = null, string dataDir = null)
     {
         var parts = new List<string>();
         parts.Add($"Du bist {agent.Name}.");
 
-        if (!string.IsNullOrWhiteSpace(agent.Persona))
-            parts.Add($"## Persona\n{agent.Persona}");
+        // IDENTITY.md - Wer bin ich
+        if (memoryService != null && !string.IsNullOrWhiteSpace(agent.AgentId))
+        {
+            var identity = memoryService.ReadMemoryFile(agent.AgentId, "IDENTITY.md");
+            if (!string.IsNullOrEmpty(identity))
+                parts.Add(identity);
+        }
 
-        if (!string.IsNullOrWhiteSpace(agent.Instructions))
-            parts.Add($"## Instructions\n{agent.Instructions}");
+        // SOUL.md - Persönlichkeit + Regeln
+        if (memoryService != null && !string.IsNullOrWhiteSpace(agent.AgentId))
+        {
+            var soul = memoryService.ReadMemoryFile(agent.AgentId, "SOUL.md");
+            if (!string.IsNullOrEmpty(soul))
+                parts.Add(soul);
+        }
+
+        // USER.md - Global (aus data-Ordner)
+        if (!string.IsNullOrWhiteSpace(dataDir))
+        {
+            var userFile = System.IO.Path.Combine(dataDir, "USER.md");
+            if (System.IO.File.Exists(userFile))
+            {
+                var userContent = System.IO.File.ReadAllText(userFile);
+                if (!string.IsNullOrWhiteSpace(userContent))
+                    parts.Add(userContent);
+            }
+        }
 
         bool toolAny = string.Equals(agent.ToolChoice, "any", System.StringComparison.OrdinalIgnoreCase);