fix(cli): fix install script failing on repeated runs

The install script crashed silently on repeated `--local` runs due to
three issues:

1. `REPO_URL` includes `.git` suffix which returns 404 when used for
   GitHub releases API — `grep` found no match, exited 1, and
   `set -euo pipefail` killed the script with no error message.

2. `multica version` outputs "multica 0.1.26 (commit: ...)" but the
   version comparison used the full string, so it never matched the
   release tag and always attempted unnecessary upgrades.

3. Interrupted previous clones left a non-empty directory without
   `.git/`, causing `git clone` to fail on retry.

.goreleaser.yml

@@ -11,7 +11,6 @@ builds:
       - -s -w
       - -X main.version={{.Version}}
       - -X main.commit={{.ShortCommit}}
-      - -X main.date={{.Date}}
     env:
       - CGO_ENABLED=0
     goos:

Makefile

@@ -190,11 +190,10 @@ multica:
 
 VERSION ?= $(shell git describe --tags --always --dirty 2>/dev/null || echo dev)
 COMMIT  ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
-DATE    ?= $(shell date -u '+%Y-%m-%dT%H:%M:%SZ')
 
 build:
 	cd server && go build -o bin/server ./cmd/server
-	cd server && go build -ldflags "-X main.version=$(VERSION) -X main.commit=$(COMMIT) -X main.date=$(DATE)" -o bin/multica ./cmd/multica
+	cd server && go build -ldflags "-X main.version=$(VERSION) -X main.commit=$(COMMIT)" -o bin/multica ./cmd/multica
 	cd server && go build -o bin/migrate ./cmd/migrate
 
 test:

server/cmd/multica/cmd_update.go

@@ -17,7 +17,7 @@ var updateCmd = &cobra.Command{
 }
 
 func runUpdate(_ *cobra.Command, _ []string) error {
-	fmt.Fprintf(os.Stderr, "Current version: %s (commit: %s, built: %s)\n", version, commit, date)
+	fmt.Fprintf(os.Stderr, "Current version: %s (commit: %s)\n", version, commit)
 
 	// Check latest version from GitHub.
 	latest, err := cli.FetchLatestRelease()

server/cmd/multica/cmd_version.go

@@ -1,42 +1,15 @@
 package main
 
 import (
-	"encoding/json"
 	"fmt"
-	"os"
-	"runtime"
 
 	"github.com/spf13/cobra"
 )
 
-func init() {
-	versionCmd.Flags().String("output", "text", "Output format: text or json")
-}
-
 var versionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Print version information",
-	RunE:  runVersion,
-}
-
-func runVersion(cmd *cobra.Command, _ []string) error {
-	output, _ := cmd.Flags().GetString("output")
-
-	if output == "json" {
-		info := map[string]string{
-			"version":   version,
-			"commit":    commit,
-			"date":      date,
-			"go":        runtime.Version(),
-			"os":        runtime.GOOS,
-			"arch":      runtime.GOARCH,
-		}
-		enc := json.NewEncoder(os.Stdout)
-		enc.SetIndent("", "  ")
-		return enc.Encode(info)
-	}
-
-	fmt.Printf("multica %s (commit: %s, built: %s)\n", version, commit, date)
-	fmt.Printf("go: %s, os/arch: %s/%s\n", runtime.Version(), runtime.GOOS, runtime.GOARCH)
-	return nil
+	Run: func(_ *cobra.Command, _ []string) {
+		fmt.Printf("multica %s (commit: %s)\n", version, commit)
+	},
 }

server/cmd/multica/main.go

@@ -10,7 +10,6 @@ import (
 var (
 	version = "dev"
 	commit  = "unknown"
-	date    = "unknown"
 )
 
 var rootCmd = &cobra.Command{