refactor(agent-config): single AgentConfigEditor for list + task scopes

src/ClaudeDo.Localization/locales/en.json

@@ -169,11 +169,6 @@
     "starTip": "Star",
     "agentSettingsTip": "Agent settings",
     "agentSettingsHeading": "Agent settings (overrides)",
-    "modelLabel": "Model",
-    "maxTurnsLabel": "Max turns",
-    "systemPromptLabel": "System prompt (appended)",
-    "systemPromptPrepended": "Prepended automatically:",
-    "agentFileLabel": "Agent file",
     "mergeLabel": "MERGE",
     "mergeTargetLabel": "Merge target",
     "reviewCombinedDiff": "Review combined diff",
@@ -264,11 +259,7 @@
       "browse": "Browse...",
       "defaultCommitType": "Default commit type",
       "sectionAgent": "AGENT",
-      "resetAgentSettings": "Reset agent settings",
-      "model": "Model",
-      "maxTurns": "Max turns",
-      "systemPrompt": "System prompt (appended)",
-      "agentFile": "Agent file"
+      "resetAgentSettings": "Reset agent settings"
     },
     "merge": {
       "title": "MERGE WORKTREE",