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/common.go

@@ -0,0 +1,31 @@
+package tools
+
+import (
+	"fmt"
+
+	"git.warky.dev/wdevs/amcs/internal/config"
+)
+
+func normalizeLimit(limit int, cfg config.SearchConfig) int {
+	if limit <= 0 {
+		return cfg.DefaultLimit
+	}
+	if limit > cfg.MaxLimit {
+		return cfg.MaxLimit
+	}
+	return limit
+}
+
+func normalizeThreshold(value float64, fallback float64) float64 {
+	if value <= 0 {
+		return fallback
+	}
+	if value > 1 {
+		return 1
+	}
+	return value
+}
+
+func errInvalidInput(message string) error {
+	return fmt.Errorf("invalid input: %s", message)
+}