refactor: move pkg/ to internal/ and update imports

Restructure project by relocating package contents from pkg/ to internal/ to better reflect internal-only usage. This commit is initial step to prepare project for public api

internal/search/search_test.go

@@ -0,0 +1,65 @@
+// ALR - Any Linux Repository
+// Copyright (C) 2025 The ALR Authors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package search_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"gitea.plemya-x.ru/Plemya-x/ALR/internal/search"
+)
+
+func TestSearhOptionsBuilder(t *testing.T) {
+	type testCase struct {
+		name          string
+		prepare       func() *search.SearchOptions
+		expectedWhere string
+		expectedArgs  []any
+	}
+
+	for _, tc := range []testCase{
+		{
+			name: "Empty fields",
+			prepare: func() *search.SearchOptions {
+				return search.NewSearchOptions().
+					Build()
+			},
+			expectedWhere: "",
+			expectedArgs:  []any{},
+		},
+		{
+			name: "All fields",
+			prepare: func() *search.SearchOptions {
+				return search.NewSearchOptions().
+					WithName("foo").
+					WithDescription("bar").
+					WithRepository("buz").
+					WithProvides("test").
+					Build()
+			},
+			expectedWhere: "name LIKE ? AND description LIKE ? AND repository = ? AND json_array_contains(provides, ?)",
+			expectedArgs:  []any{"%foo%", "%bar%", "buz", "test"},
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			whereClause, args := tc.prepare().WhereClause()
+			assert.Equal(t, tc.expectedWhere, whereClause)
+			assert.ElementsMatch(t, tc.expectedArgs, args)
+		})
+	}
+}