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/ai/provider.go

@@ -0,0 +1,14 @@
+package ai
+
+import (
+	"context"
+
+	thoughttypes "git.warky.dev/wdevs/amcs/internal/types"
+)
+
+type Provider interface {
+	Embed(ctx context.Context, input string) ([]float32, error)
+	ExtractMetadata(ctx context.Context, input string) (thoughttypes.ThoughtMetadata, error)
+	Summarize(ctx context.Context, systemPrompt, userPrompt string) (string, error)
+	Name() string
+}