feat(db): add project personas and skills tables

* Introduce project_personas table with foreign keys to projects and agent_personas
* Add project_skills table with foreign key to projects and agent_skills
* Include override boolean field in agent_persona_skills and project_skills
* Update schema and migration files to reflect new tables and fields
* Enhance CORS handling to reflect request origin

internal/mcpserver/server.go

@@ -1,6 +1,7 @@
 package mcpserver
 
 import (
+	"context"
 	"log/slog"
 	"net/http"
 	"strings"
@@ -37,12 +38,14 @@ type ToolSet struct {
 	Reparse       *tools.ReparseMetadataTool
 	RetryMetadata *tools.RetryEnrichmentTool
 	//Maintenance   *tools.MaintenanceTool
-	Skills      *tools.SkillsTool
-	Personas    *tools.AgentPersonasTool
-	ChatHistory *tools.ChatHistoryTool
-	Describe    *tools.DescribeTool
-	Learnings   *tools.LearningsTool
-	Plans       *tools.PlansTool
+	Skills          *tools.SkillsTool
+	Personas        *tools.AgentPersonasTool
+	ChatHistory     *tools.ChatHistoryTool
+	Describe        *tools.DescribeTool
+	Learnings       *tools.LearningsTool
+	Plans           *tools.PlansTool
+	ProjectPersonas *tools.ProjectPersonasTool
+	WorldModel      *tools.WorldModelTool
 }
 
 // Handlers groups the HTTP handlers produced for an MCP server instance.
@@ -86,6 +89,7 @@ func NewHandlers(cfg config.MCPConfig, logger *slog.Logger, toolSet ToolSet, onS
 		registerSystemTools,
 		registerThoughtTools,
 		registerProjectTools,
+		registerWorldModelTools,
 		registerLearningTools,
 		registerPlanTools,
 		registerFileTools,
@@ -123,6 +127,33 @@ func NewHandlers(cfg config.MCPConfig, logger *slog.Logger, toolSet ToolSet, onS
 	return h, nil
 }
 
+func registerWorldModelTools(server *mcp.Server, logger *slog.Logger, toolSet ToolSet) error {
+	server.AddResource(&mcp.Resource{
+		Name:        "world_model_intro",
+		URI:         "amcs://world-model/intro",
+		MIMEType:    "text/markdown",
+		Description: "Mandatory startup instructions for discovering and loading the AMCS world model.",
+	}, func(_ context.Context, req *mcp.ReadResourceRequest) (*mcp.ReadResourceResult, error) {
+		return &mcp.ReadResourceResult{Contents: []*mcp.ResourceContents{{URI: req.Params.URI, MIMEType: "text/markdown", Text: string(amcsllm.WorldModelIntro)}}}, nil
+	})
+	if err := addTool(server, logger, &mcp.Tool{Name: "bootstrap_world_model", Description: "Validate and activate a project, then return its effective skills, guardrails, personas, and bounded recent context."}, toolSet.WorldModel.Bootstrap); err != nil {
+		return err
+	}
+	if err := addTool(server, logger, &mcp.Tool{Name: "add_project_persona", Description: "Link a persona to a project and optionally make it the default."}, toolSet.ProjectPersonas.Add); err != nil {
+		return err
+	}
+	if err := addTool(server, logger, &mcp.Tool{Name: "remove_project_persona", Description: "Unlink a persona from a project."}, toolSet.ProjectPersonas.Remove); err != nil {
+		return err
+	}
+	if err := addTool(server, logger, &mcp.Tool{Name: "set_default_project_persona", Description: "Set a linked persona as the project's default persona."}, toolSet.ProjectPersonas.SetDefault); err != nil {
+		return err
+	}
+	if err := addTool(server, logger, &mcp.Tool{Name: "list_project_personas", Description: "List personas linked to a project, with the default marked."}, toolSet.ProjectPersonas.List); err != nil {
+		return err
+	}
+	return nil
+}
+
 // buildServerIcons returns icon definitions referencing the server's own /images/icon.png endpoint.
 // Returns nil when publicURL is empty so the icons field is omitted from the MCP identity.
 func buildServerIcons(publicURL string) []mcp.Icon {
@@ -713,6 +744,11 @@ func BuildToolCatalog() []tools.ToolEntry {
 		{Name: "list_projects", Description: "List projects and their current thought counts.", Category: "projects"},
 		{Name: "set_active_project", Description: "Set the active project for the current MCP session. Requires a stateful MCP client that reuses the same session across calls. If your client does not preserve sessions, pass project explicitly to each tool instead.", Category: "projects"},
 		{Name: "get_active_project", Description: "Return the active project for the current MCP session. If your client does not preserve MCP sessions, pass project explicitly to project-scoped tools instead of relying on this.", Category: "projects"},
+		{Name: "bootstrap_world_model", Description: "Validate and activate a project, then return effective skills, guardrails, personas, and bounded recent context.", Category: "projects"},
+		{Name: "add_project_persona", Description: "Link a persona to a project and optionally make it the default.", Category: "personas"},
+		{Name: "remove_project_persona", Description: "Unlink a persona from a project.", Category: "personas"},
+		{Name: "set_default_project_persona", Description: "Set a linked persona as the project's default persona.", Category: "personas"},
+		{Name: "list_project_personas", Description: "List personas linked to a project, with the default marked.", Category: "personas"},
 		{Name: "get_project_context", Description: "Get recent and semantic context for a project. Uses the explicit project when provided, otherwise the active MCP session project. Falls back to full-text search when no embeddings exist.", Category: "projects"},
 
 		// learnings