refactor(config): remove unused agent character configurations

Remove analytical, cheerful, technical and precise character configurations from agent-characters.json as they are no longer used in the application

Author: moazbuilds

config/agent-characters.json

@@ -14,66 +14,6 @@
         "error": ["Oops, something went wrong", "Let me try again"],
         "idle": ["Ready when you are", "Waiting..."]
       }
-    },
-    "analytical": {
-      "baseFace": "[•_•]",
-      "expressions": {
-        "thinking": "[•_•]~",
-        "tool": "[◉_◉]",
-        "error": "[x_x]",
-        "idle": "[•_•]"
-      },
-      "phrases": {
-        "thinking": ["Analyzing...", "Computing..."],
-        "tool": ["Executing...", "Running..."],
-        "error": ["Error encountered", "Retrying..."],
-        "idle": ["Standing by", "Awaiting input"]
-      }
-    },
-    "cheerful": {
-      "baseFace": "◕‿◕",
-      "expressions": {
-        "thinking": "◕~◕",
-        "tool": "◕!◕",
-        "error": "◕_◕",
-        "idle": "◕‿◕"
-      },
-      "phrases": {
-        "thinking": ["Pondering...", "Considering..."],
-        "tool": ["Let me do that!", "Working on it..."],
-        "error": ["Hmm, that didn't work", "Let me try again"],
-        "idle": ["Here to help!", "Ready for action"]
-      }
-    },
-    "technical": {
-      "baseFace": "{•_•}",
-      "expressions": {
-        "thinking": "{•~•}",
-        "tool": "{•!•}",
-        "error": "{•x•}",
-        "idle": "{•_•}"
-      },
-      "phrases": {
-        "thinking": ["Processing...", "Analyzing..."],
-        "tool": ["Executing...", "Working..."],
-        "error": ["Error", "Retrying..."],
-        "idle": ["Ready", "Waiting..."]
-      }
-    },
-    "precise": {
-      "baseFace": "<•_•>",
-      "expressions": {
-        "thinking": "<•~•>",
-        "tool": "<•!•>",
-        "error": "<•x•>",
-        "idle": "<•_•>"
-      },
-      "phrases": {
-        "thinking": ["Evaluating...", "Checking..."],
-        "tool": ["Validating...", "Running checks..."],
-        "error": ["Issue detected", "Reviewing..."],
-        "idle": ["Ready", "Monitoring..."]
-      }
     }
   },
   "agents": {