Rename project from Re:Link to Startover

Rebrand repository from "Re:Link" to "Startover" across the codebase. Updates include package names and scopes (@relink/* -> @startover/*), import paths, Next.js transpile settings, vitest name, UI text and docs, Dockerfile and CI/workflow names, deploy scripts and repo paths, and example/production env values. Also add auth-related env vars, an apps/web .env symlink, and small formatting/typing cleanups in several TSX/TS files and tests to accommodate the rename.

deploy/deploy.sh

@@ -2,14 +2,14 @@
 set -euo pipefail
 
 # ===========================================
-# Re:Link Auto Deploy Script
+# Startover Auto Deploy Script
 # Triggered by Gitea webhook on push to main
 # ===========================================
 
-APP_DIR="$HOME/relink"
+APP_DIR="$HOME/startover"
 LOG_FILE="$APP_DIR/deploy.log"
 LOCK_FILE="$APP_DIR/deploy.lock"
-GITEA_REPO="http://39.117.244.52:3000/geonhee/Re_Link.git"
+GITEA_REPO="http://39.117.244.52:3000/geonhee/startover.git"
 
 log() {
     echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"