Adopt sneak.berlin/go/vaultik vanity import path, README overhaul

Module path changed from git.eeqj.de/sneak/vaultik to
sneak.berlin/go/vaultik (vanity redirect). All imports, ldflags,
Dockerfile, goreleaser config, and docs updated. App data/config
directories now use plain "vaultik" instead of the reverse-DNS name.

README:
- New copy-pasteable quickstart at top: go install, config init,
  age keypair, config set for key + file:// destination, home backup
- All command names in command details are code-quoted
- config set/get gained sequence index support (age_recipients.0)
  so lists are settable from the CLI
- Dockerfile build is CGO_ENABLED=0 to match the pure-Go build

internal/database/blob_chunks_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 func TestBlobChunkRepository(t *testing.T) {

internal/database/blobs.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/log"
+	"sneak.berlin/go/vaultik/internal/log"
 )
 
 type BlobRepository struct {

internal/database/blobs_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 func TestBlobRepository(t *testing.T) {

internal/database/cascade_debug_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 // TestCascadeDeleteDebug tests cascade delete with debug output

internal/database/chunk_files.go

@@ -5,7 +5,7 @@ import (
 	"database/sql"
 	"fmt"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 type ChunkFileRepository struct {

internal/database/chunk_files_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 func TestChunkFileRepository(t *testing.T) {

internal/database/chunks.go

@@ -5,7 +5,7 @@ import (
 	"database/sql"
 	"fmt"
 
-	"git.eeqj.de/sneak/vaultik/internal/log"
+	"sneak.berlin/go/vaultik/internal/log"
 )
 
 type ChunkRepository struct {

internal/database/chunks_test.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"testing"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 func TestChunkRepository(t *testing.T) {

internal/database/database.go

@@ -22,8 +22,8 @@ import (
 	"strconv"
 	"strings"
 
-	"git.eeqj.de/sneak/vaultik/internal/log"
 	_ "modernc.org/sqlite"
+	"sneak.berlin/go/vaultik/internal/log"
 )
 
 //go:embed schema/*.sql

internal/database/file_chunks.go

@@ -5,7 +5,7 @@ import (
 	"database/sql"
 	"fmt"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 type FileChunkRepository struct {

internal/database/file_chunks_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 func TestFileChunkRepository(t *testing.T) {

internal/database/files.go

@@ -6,8 +6,8 @@ import (
 	"fmt"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/log"
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/log"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 type FileRepository struct {

internal/database/models.go

@@ -5,7 +5,7 @@ package database
 import (
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 // File represents a file or directory in the backup system.

internal/database/module.go

@@ -6,9 +6,9 @@ import (
 	"os"
 	"path/filepath"
 
-	"git.eeqj.de/sneak/vaultik/internal/config"
-	"git.eeqj.de/sneak/vaultik/internal/log"
 	"go.uber.org/fx"
+	"sneak.berlin/go/vaultik/internal/config"
+	"sneak.berlin/go/vaultik/internal/log"
 )
 
 // Module provides database dependencies

internal/database/repositories_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 func TestRepositoriesTransaction(t *testing.T) {

internal/database/repository_comprehensive_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 // TestFileRepositoryUUIDGeneration tests that files get unique UUIDs

internal/database/repository_edge_cases_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 // TestFileRepositoryEdgeCases tests edge cases for file repository

internal/database/snapshots.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 type SnapshotRepository struct {

internal/database/snapshots_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/types"
+	"sneak.berlin/go/vaultik/internal/types"
 )
 
 const (

internal/database/uploads.go

@@ -5,7 +5,7 @@ import (
 	"database/sql"
 	"time"
 
-	"git.eeqj.de/sneak/vaultik/internal/log"
+	"sneak.berlin/go/vaultik/internal/log"
 )
 
 // Upload represents a blob upload record