feat(tools): implement CRUD operations for thoughts and projects

* Add tools for creating, retrieving, updating, and deleting thoughts.
* Implement project management tools for creating and listing projects.
* Introduce linking functionality between thoughts.
* Add search and recall capabilities for thoughts based on semantic queries.
* Implement statistics and summarization tools for thought analysis.
* Create database migrations for thoughts, projects, and links.
* Add helper functions for UUID parsing and project resolution.

internal/tools/archive.go

@@ -0,0 +1,36 @@
+package tools
+
+import (
+	"context"
+
+	"github.com/modelcontextprotocol/go-sdk/mcp"
+
+	"git.warky.dev/wdevs/amcs/internal/store"
+)
+
+type ArchiveTool struct {
+	store *store.DB
+}
+
+type ArchiveInput struct {
+	ID string `json:"id" jsonschema:"the thought id"`
+}
+
+type ArchiveOutput struct {
+	Archived bool `json:"archived"`
+}
+
+func NewArchiveTool(db *store.DB) *ArchiveTool {
+	return &ArchiveTool{store: db}
+}
+
+func (t *ArchiveTool) Handle(ctx context.Context, _ *mcp.CallToolRequest, in ArchiveInput) (*mcp.CallToolResult, ArchiveOutput, error) {
+	id, err := parseUUID(in.ID)
+	if err != nil {
+		return nil, ArchiveOutput{}, err
+	}
+	if err := t.store.ArchiveThought(ctx, id); err != nil {
+		return nil, ArchiveOutput{}, err
+	}
+	return nil, ArchiveOutput{Archived: true}, nil
+}