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/metadata/normalize_test.go

@@ -0,0 +1,81 @@
+package metadata
+
+import (
+	"strings"
+	"testing"
+
+	"git.warky.dev/wdevs/amcs/internal/config"
+	thoughttypes "git.warky.dev/wdevs/amcs/internal/types"
+)
+
+func testCaptureConfig() config.CaptureConfig {
+	return config.CaptureConfig{
+		Source: "mcp",
+		MetadataDefaults: config.CaptureMetadataDefault{
+			Type:          "observation",
+			TopicFallback: "uncategorized",
+		},
+	}
+}
+
+func TestFallbackUsesConfiguredDefaults(t *testing.T) {
+	got := Fallback(testCaptureConfig())
+	if got.Type != "observation" {
+		t.Fatalf("Fallback type = %q, want observation", got.Type)
+	}
+	if len(got.Topics) != 1 || got.Topics[0] != "uncategorized" {
+		t.Fatalf("Fallback topics = %#v, want [uncategorized]", got.Topics)
+	}
+	if got.Source != "mcp" {
+		t.Fatalf("Fallback source = %q, want mcp", got.Source)
+	}
+}
+
+func TestNormalizeTrimsDedupesAndCapsTopics(t *testing.T) {
+	topics := []string{}
+	for i := 0; i < 12; i++ {
+		topics = append(topics, strings.TrimSpace(" topic "))
+		topics = append(topics, string(rune('a'+i)))
+	}
+
+	got := Normalize(thoughttypes.ThoughtMetadata{
+		People: []string{" Alice ", "alice", "", "Bob"},
+		Topics: topics,
+		Type:   "INVALID",
+	}, testCaptureConfig())
+
+	if len(got.People) != 2 {
+		t.Fatalf("People len = %d, want 2", len(got.People))
+	}
+	if got.Type != "observation" {
+		t.Fatalf("Type = %q, want observation", got.Type)
+	}
+	if len(got.Topics) != maxTopics {
+		t.Fatalf("Topics len = %d, want %d", len(got.Topics), maxTopics)
+	}
+}
+
+func TestMergeAddsPatchAndNormalizes(t *testing.T) {
+	base := thoughttypes.ThoughtMetadata{
+		People: []string{"Alice"},
+		Topics: []string{"go"},
+		Type:   "idea",
+		Source: "mcp",
+	}
+	patch := thoughttypes.ThoughtMetadata{
+		People: []string{" Bob ", "alice"},
+		Topics: []string{"testing"},
+		Type:   "task",
+	}
+
+	got := Merge(base, patch, testCaptureConfig())
+	if got.Type != "task" {
+		t.Fatalf("Type = %q, want task", got.Type)
+	}
+	if len(got.People) != 2 {
+		t.Fatalf("People len = %d, want 2", len(got.People))
+	}
+	if len(got.Topics) != 2 {
+		t.Fatalf("Topics len = %d, want 2", len(got.Topics))
+	}
+}