feat(councils-ui): add on-demand council conversations panel and model config controls

src/gateway/handlers/config.ts

@@ -10,6 +10,47 @@ export interface ConfigHandlerDeps {
   modelRouter?: ModelRouter;
 }
 
+function ensureCouncilsConfig(config: Config): NonNullable<Config['councils']> {
+  config.councils ??= {
+    enabled: false,
+    defaults: {
+      max_rounds: 2,
+      ideas_per_round: 6,
+      top_ideas_for_bridge: 3,
+      bridge_packet_max_chars: 2500,
+      bridge_field_max_bullets: 6,
+      bridge_entry_max_chars: 300,
+      novelty_delta_threshold: 10,
+      repetition_threshold: 70,
+    },
+    strict_grounding: false,
+    strict_meta_validation: true,
+    groups: {
+      D: {
+        arbiter_agent: 'council_d_arbiter',
+        freethinker_agent: 'council_d_freethinker',
+        model_tier: 'complex',
+        group_prompt_prefix: 'Optimize for feasibility and speed-to-test. Prefer boring-but-true.',
+        novelty_bias: 'low',
+        risk_tolerance: 'low',
+        forbidden_approaches: ['moonshots', 'handwavy AI claims', 'unverified assumptions'],
+      },
+      P: {
+        arbiter_agent: 'council_p_arbiter',
+        freethinker_agent: 'council_p_freethinker',
+        model_tier: 'complex',
+        group_prompt_prefix: 'Optimize for reframing and non-obvious leverage. Weird is fine; label speculation.',
+        novelty_bias: 'high',
+        risk_tolerance: 'high',
+        forbidden_approaches: ['incremental tweaks', 'obvious best practices', 'purely conventional solutions'],
+      },
+    },
+    meta_arbiter_agent: 'council_meta_arbiter',
+    meta_model_tier: 'complex',
+  };
+  return config.councils;
+}
+
 /**
  * Redact sensitive values from config before returning.
  * Replaces API keys, tokens, passwords, and other credentials with "***".
@@ -316,6 +357,87 @@ const PATCHABLE_KEYS: Record<string, (config: Config, value: unknown) => boolean
     config.agents.background_models.complex_reasoning.fallback_tier = value;
     return true;
   },
+  'councils.enabled': (config, value) => {
+    if (typeof value !== 'boolean') {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.enabled = value;
+    return true;
+  },
+  'councils.defaults.max_rounds': (config, value) => {
+    if (typeof value !== 'number' || !Number.isFinite(value) || value < 1 || value > 6) {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.defaults.max_rounds = Math.floor(value);
+    return true;
+  },
+  'councils.groups.D.model_tier': (config, value) => {
+    if (value !== 'fast' && value !== 'default' && value !== 'complex' && value !== 'local') {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.D.model_tier = value;
+    return true;
+  },
+  'councils.groups.P.model_tier': (config, value) => {
+    if (value !== 'fast' && value !== 'default' && value !== 'complex' && value !== 'local') {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.P.model_tier = value;
+    return true;
+  },
+  'councils.meta_model_tier': (config, value) => {
+    if (value !== 'fast' && value !== 'default' && value !== 'complex' && value !== 'local') {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.meta_model_tier = value;
+    return true;
+  },
+  'councils.groups.D.arbiter_agent': (config, value) => {
+    if (typeof value !== 'string' || value.trim().length === 0) {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.D.arbiter_agent = value.trim();
+    return true;
+  },
+  'councils.groups.D.freethinker_agent': (config, value) => {
+    if (typeof value !== 'string' || value.trim().length === 0) {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.D.freethinker_agent = value.trim();
+    return true;
+  },
+  'councils.groups.D.grounder_agent': (config, value) => {
+    if (typeof value !== 'string') {return false;}
+    const next = value.trim();
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.D.grounder_agent = next.length > 0 ? next : undefined;
+    return true;
+  },
+  'councils.groups.P.arbiter_agent': (config, value) => {
+    if (typeof value !== 'string' || value.trim().length === 0) {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.P.arbiter_agent = value.trim();
+    return true;
+  },
+  'councils.groups.P.freethinker_agent': (config, value) => {
+    if (typeof value !== 'string' || value.trim().length === 0) {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.P.freethinker_agent = value.trim();
+    return true;
+  },
+  'councils.groups.P.grounder_agent': (config, value) => {
+    if (typeof value !== 'string') {return false;}
+    const next = value.trim();
+    const councils = ensureCouncilsConfig(config);
+    councils.groups.P.grounder_agent = next.length > 0 ? next : undefined;
+    return true;
+  },
+  'councils.meta_arbiter_agent': (config, value) => {
+    if (typeof value !== 'string' || value.trim().length === 0) {return false;}
+    const councils = ensureCouncilsConfig(config);
+    councils.meta_arbiter_agent = value.trim();
+    return true;
+  },
+  'councils.scaffold_path': (config, value) => {
+    if (typeof value !== 'string') {return false;}
+    const next = value.trim();
+    const councils = ensureCouncilsConfig(config);
+    councils.scaffold_path = next.length > 0 ? next : undefined;
+    return true;
+  },
   'models.default.provider': (config, value) => {
     if (!MODEL_PROVIDERS.includes(String(value) as ModelProvider)) {return false;}
     config.models.default.provider = value as ModelProvider;