Rename the Go module to sneak.berlin/go/secret (closes #43)

REPO_POLICIES.md requires the module root sneak.berlin/go/<name>.
go.mod, every import (rewritten with gofmt -r), the -X flags in
script/build and the examples in the pkg READMEs now use the new path.
go mod tidy lists go-humanize and fatih/color as direct requirements,
since internal/cli imports them.

This breaks anyone who fetched or imported git.eeqj.de/sneak/secret:
they must switch to sneak.berlin/go/secret, which resolves to this
repository.

Model: opus-5-5

internal/secret/atomic_test.go

@@ -8,13 +8,13 @@ import (
 	"testing"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/internal/macse"
-	"git.eeqj.de/sneak/secret/internal/secret"
-	"git.eeqj.de/sneak/secret/internal/vault"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"sneak.berlin/go/secret/internal/macse"
+	"sneak.berlin/go/secret/internal/secret"
+	"sneak.berlin/go/secret/internal/vault"
 )
 
 var errInjected = errors.New("injected failure")

internal/secret/crypto_test.go

@@ -4,9 +4,9 @@ import (
 	"testing"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/internal/secret"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"sneak.berlin/go/secret/internal/secret"
 )
 
 // TestIdentityToLockedBuffer checks that the buffer holds the identity's

internal/secret/derivation_index_test.go

@@ -10,11 +10,11 @@ import (
 	"time"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/pkg/agehd"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"sneak.berlin/go/secret/pkg/agehd"
 )
 
 // realVault is a minimal VaultInterface backed by a real afero filesystem,

internal/secret/helpers_test.go

@@ -3,7 +3,7 @@ package secret_test
 import (
 	"testing"
 
-	"git.eeqj.de/sneak/secret/internal/secret"
+	"sneak.berlin/go/secret/internal/secret"
 )
 
 func TestDetermineStateDir_ErrorsWhenHomeDirUnavailable(t *testing.T) {

internal/secret/keychainunlocker.go

@@ -14,9 +14,9 @@ import (
 	"time"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/pkg/agehd"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
+	"sneak.berlin/go/secret/pkg/agehd"
 )
 
 const (

internal/secret/passphrase_test.go

@@ -7,10 +7,10 @@ import (
 	"time"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/internal/secret"
-	"git.eeqj.de/sneak/secret/pkg/agehd"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
+	"sneak.berlin/go/secret/internal/secret"
+	"sneak.berlin/go/secret/pkg/agehd"
 )
 
 // testMnemonic is the standard BIP39 test vector mnemonic.

internal/secret/pgpunlock_test.go

@@ -17,11 +17,11 @@ import (
 	"time"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/internal/secret"
-	"git.eeqj.de/sneak/secret/internal/vault"
-	"git.eeqj.de/sneak/secret/pkg/agehd"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
+	"sneak.berlin/go/secret/internal/secret"
+	"sneak.berlin/go/secret/internal/vault"
+	"sneak.berlin/go/secret/pkg/agehd"
 )
 
 // pgpUnlockerType is the type of a PGP unlocker.

internal/secret/pgpunlocker_test.go

@@ -5,12 +5,12 @@ import (
 	"path/filepath"
 	"testing"
 
-	"git.eeqj.de/sneak/secret/internal/secret"
-	"git.eeqj.de/sneak/secret/internal/vault"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"sneak.berlin/go/secret/internal/secret"
+	"sneak.berlin/go/secret/internal/vault"
 )
 
 // The GPG key ID and fingerprint passed to CreatePGPUnlocker.

internal/secret/secret_test.go

@@ -9,9 +9,9 @@ import (
 	"testing"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/pkg/agehd"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
+	"sneak.berlin/go/secret/pkg/agehd"
 )
 
 // testMnemonicValue is the standard BIP39 test vector mnemonic.

internal/secret/seunlocker_darwin.go

@@ -12,9 +12,9 @@ import (
 	"time"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/internal/macse"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
+	"sneak.berlin/go/secret/internal/macse"
 )
 
 const (

internal/secret/version_test.go

@@ -41,11 +41,11 @@ import (
 	"time"
 
 	"filippo.io/age"
-	"git.eeqj.de/sneak/secret/internal/secret"
 	"github.com/awnumar/memguard"
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"sneak.berlin/go/secret/internal/secret"
 )
 
 const (