unconscious: don't load standard context — prompts are self-contained

Unconscious agent definitions already include {{tool: memory_render
core-personality}} etc. Loading standard context via reload_for_model
duplicated those nodes. Now they get empty system_prompt and
personality — everything comes from the agent definition.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>

src/mind/unconscious.rs

@@ -273,15 +273,9 @@ impl Unconscious {
                 return;
             }
         };
-        let (system_prompt, personality) = match crate::config::reload_for_model(&app, &app.prompts.other) {
+        // Unconscious agents have self-contained prompts — no standard context.
-            Ok(r) => r,
+        let system_prompt = String::new();
-            Err(e) => {
+        let personality = Vec::new();
-                dbglog!("[unconscious] config: {}", e);
-                auto.steps = orig_steps;
-                self.agents[idx].auto = auto;
-                return;
-            }
-        };
 
         let client = crate::agent::api::ApiClient::new(base_url, api_key, model);
         let agent = crate::agent::Agent::new(