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/build/find_deps/find_deps.go

@@ -0,0 +1,58 @@
+// 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 finddeps
+
+import (
+	"context"
+
+	"github.com/goreleaser/nfpm/v2"
+
+	"gitea.plemya-x.ru/Plemya-x/ALR/internal/distro"
+	"gitea.plemya-x.ru/Plemya-x/ALR/internal/types"
+)
+
+type ProvReqFinder interface {
+	FindProvides(ctx context.Context, pkgInfo *nfpm.Info, dirs types.Directories, skiplist []string) error
+	FindRequires(ctx context.Context, pkgInfo *nfpm.Info, dirs types.Directories, skiplist []string) error
+}
+
+type ProvReqService struct {
+	finder ProvReqFinder
+}
+
+func New(info *distro.OSRelease, pkgFormat string) *ProvReqService {
+	s := &ProvReqService{
+		finder: &EmptyFindProvReq{},
+	}
+	if pkgFormat == "rpm" {
+		switch info.ID {
+		case "altlinux":
+			s.finder = &ALTLinuxFindProvReq{}
+		case "fedora":
+			s.finder = &FedoraFindProvReq{}
+		}
+	}
+	return s
+}
+
+func (s *ProvReqService) FindProvides(ctx context.Context, pkgInfo *nfpm.Info, dirs types.Directories, skiplist []string) error {
+	return s.finder.FindProvides(ctx, pkgInfo, dirs, skiplist)
+}
+
+func (s *ProvReqService) FindRequires(ctx context.Context, pkgInfo *nfpm.Info, dirs types.Directories, skiplist []string) error {
+	return s.finder.FindRequires(ctx, pkgInfo, dirs, skiplist)
+}