Fix council formation broadcast and reduce core roles

Two critical fixes for E2E council workflow:

1. Reduced core council roles from 8 to 2 (tpm + senior-software-architect)
   - Faster council formation
   - Easier debugging
   - Sufficient for initial project planning

2. Added broadcast to monitor path
   - Monitor now broadcasts council opportunities to CHORUS agents
   - Previously only webhook path had broadcast, monitor path missed it
   - Added broadcaster parameter to NewMonitor()
   - Broadcast sent after council formation with 30s timeout

Verified working:
- Council formation successful
- Broadcast to CHORUS agents confirmed
- Role claims received (TPM claimed and loaded)
- Persona status "loaded" acknowledged

Image: anthonyrawlins/whoosh:broadcast-fix
Council: 2dad2070-292a-4dbd-9195-89795f84da19

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

internal/council/models.go

@@ -35,14 +35,18 @@ type CouncilComposition struct {
 
 // CouncilAgent represents a single agent in the council
 type CouncilAgent struct {
-	AgentID         string    `json:"agent_id"`
-	RoleName        string    `json:"role_name"`
-	AgentName       string    `json:"agent_name"`
-	Required        bool      `json:"required"`
-	Deployed        bool      `json:"deployed"`
-	ServiceID       string    `json:"service_id,omitempty"`
-	DeployedAt      *time.Time `json:"deployed_at,omitempty"`
-	Status          string    `json:"status"` // pending, deploying, active, failed
+	AgentID          string    `json:"agent_id"`
+	RoleName         string    `json:"role_name"`
+	AgentName        string    `json:"agent_name"`
+	Required         bool      `json:"required"`
+	Deployed         bool      `json:"deployed"`
+	ServiceID        string    `json:"service_id,omitempty"`
+	DeployedAt       *time.Time `json:"deployed_at,omitempty"`
+	Status           string    `json:"status"` // pending, assigned, deploying, active, failed
+	PersonaStatus    *string   `json:"persona_status,omitempty"` // pending, loading, loaded, failed
+	PersonaLoadedAt  *time.Time `json:"persona_loaded_at,omitempty"`
+	EndpointURL      *string   `json:"endpoint_url,omitempty"`
+	PersonaAckPayload map[string]interface{} `json:"persona_ack_payload,omitempty"`
 }
 
 // CouncilDeploymentResult represents the result of council agent deployment
@@ -81,15 +85,10 @@ type CouncilArtifacts struct {
 }
 
 // CoreCouncilRoles defines the required roles for any project kickoff council
+// Reduced to minimal set for faster formation and easier debugging
 var CoreCouncilRoles = []string{
-	"systems-analyst",
-	"senior-software-architect", 
 	"tpm",
-	"security-architect",
-	"devex-platform-engineer",
-	"qa-test-engineer",
-	"sre-observability-lead",
-	"technical-writer",
+	"senior-software-architect",
 }
 
 // OptionalCouncilRoles defines the optional roles that may be included based on project needs