feat: add phase 3 readonly models

internal/runtime/store_test.go

@@ -0,0 +1,97 @@
+package runtime
+
+import (
+	"database/sql"
+	"path/filepath"
+	"testing"
+
+	_ "modernc.org/sqlite"
+)
+
+func TestStoreMissingSQLiteReturnsEmptySnapshot(t *testing.T) {
+	snapshot, err := Store{CodexHome: t.TempDir()}.Snapshot()
+	if err != nil {
+		t.Fatalf("Snapshot returned error: %v", err)
+	}
+	if len(snapshot.Threads) != 0 || len(snapshot.SpawnEdges) != 0 || len(snapshot.Goals) != 0 {
+		t.Fatalf("expected empty snapshot, got %#v", snapshot)
+	}
+	if snapshot.Source.Confidence != "low" || snapshot.Source.Kind != "sqlite_missing" {
+		t.Fatalf("unexpected source evidence: %#v", snapshot.Source)
+	}
+}
+
+func TestStoreReadsThreadsEdgesAndGoalsFromReadonlySQLite(t *testing.T) {
+	root := t.TempDir()
+	createRuntimeSQLite(t, root)
+
+	snapshot, err := Store{CodexHome: root}.Snapshot()
+	if err != nil {
+		t.Fatalf("Snapshot returned error: %v", err)
+	}
+	if len(snapshot.Threads) != 2 {
+		t.Fatalf("threads = %#v", snapshot.Threads)
+	}
+	if snapshot.Threads[0].ID != "thread-a" || snapshot.Threads[0].Role != "analyst" {
+		t.Fatalf("unexpected first thread: %#v", snapshot.Threads[0])
+	}
+	if len(snapshot.SpawnEdges) != 1 || snapshot.SpawnEdges[0].FromThreadID != "thread-a" || snapshot.SpawnEdges[0].ToThreadID != "thread-b" || snapshot.SpawnEdges[0].Reason != "handoff" {
+		t.Fatalf("unexpected edges: %#v", snapshot.SpawnEdges)
+	}
+	if len(snapshot.Goals) != 1 || snapshot.Goals[0].ThreadID != "thread-b" || snapshot.Goals[0].Status != "in_progress" {
+		t.Fatalf("unexpected goals: %#v", snapshot.Goals)
+	}
+	if snapshot.Source.Confidence != "high" || snapshot.Source.Kind != "sqlite_readonly" {
+		t.Fatalf("unexpected source evidence: %#v", snapshot.Source)
+	}
+}
+
+func createRuntimeSQLite(t *testing.T, root string) {
+	t.Helper()
+	statePath := filepath.Join(root, "state_5.sqlite")
+	goalsPath := filepath.Join(root, "goals_1.sqlite")
+	stateDB, err := sql.Open("sqlite", statePath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer stateDB.Close()
+	execSQL(t, stateDB, `CREATE TABLE threads (
+		id TEXT PRIMARY KEY,
+		role TEXT,
+		status TEXT,
+		created_at TEXT,
+		updated_at TEXT
+	)`)
+	execSQL(t, stateDB, `CREATE TABLE thread_spawn_edges (
+		from_thread_id TEXT,
+		to_thread_id TEXT,
+		reason TEXT,
+		created_at TEXT
+	)`)
+	execSQL(t, stateDB, `INSERT INTO threads (id, role, status, created_at, updated_at) VALUES
+		('thread-a', 'analyst', 'done', '2026-05-25T01:00:00Z', '2026-05-25T01:05:00Z'),
+		('thread-b', 'operator', 'running', '2026-05-25T01:06:00Z', '2026-05-25T01:07:00Z')`)
+	execSQL(t, stateDB, `INSERT INTO thread_spawn_edges (from_thread_id, to_thread_id, reason, created_at) VALUES
+		('thread-a', 'thread-b', 'handoff', '2026-05-25T01:06:00Z')`)
+
+	goalsDB, err := sql.Open("sqlite", goalsPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer goalsDB.Close()
+	execSQL(t, goalsDB, `CREATE TABLE thread_goals (
+		thread_id TEXT,
+		goal TEXT,
+		status TEXT,
+		updated_at TEXT
+	)`)
+	execSQL(t, goalsDB, `INSERT INTO thread_goals (thread_id, goal, status, updated_at) VALUES
+		('thread-b', 'ship phase 3', 'in_progress', '2026-05-25T01:08:00Z')`)
+}
+
+func execSQL(t *testing.T, db *sql.DB, query string) {
+	t.Helper()
+	if _, err := db.Exec(query); err != nil {
+		t.Fatalf("exec %q: %v", query, err)
+	}
+}