Add pool presets, operator bake-ins, and USB pack improvements

- Pool preset checkboxes with failover in Calibrate and Forge

- Tier 1/2 UX: setup banner, forge next worker, LAN defaults, blueprint prompt

- USB: auto-install forge tools, seed config.json, sync LAUNCH.bat

pack-usb.bat

@@ -166,7 +166,14 @@ if not exist "%USB%\data\blueprints"    mkdir "%USB%\data\blueprints"
 if not exist "%USB%\data\preps"         mkdir "%USB%\data\preps"
 if not exist "%USB%\data\spread-kits"   mkdir "%USB%\data\spread-kits"
 if not exist "%USB%\data\uploads"       mkdir "%USB%\data\uploads"
-echo   [7/8] data\ ready - existing config and db preserved.
+if not exist "%USB%\data\config.json" (
+    echo   [7/8] Writing starter config.json...
+    powershell -NoProfile -Command ^
+      "$j = @{ port = 8989; data_dir = 'data'; pool = @{ host = 'pool.supportxmr.com'; port = 443; use_tls = $true; password = 'x'; backup_pools = @(@{ host = 'gulf.moneroocean.stream'; port = 20128; use_tls = $true }, @{ host = 'xmr.herominers.com'; port = 1120; use_tls = $true }) }; wallet = @{ address = ''; payment_id = '' }; server = @{ public_url = ''; open_firewall_on_start = $true } }; $j | ConvertTo-Json -Depth 6 | Set-Content -LiteralPath '%USB%\data\config.json' -Encoding utf8"
+    echo   [7/8] Starter config.json created ^(empty wallet, TLS pool presets^).
+) else (
+    echo   [7/8] data\ ready - existing config and db preserved.
+)
 
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 :: Summary