Add Windows (PowerShell) support

- scripts/setup.ps1, scripts/pull-models.ps1, run.ps1 — PowerShell equivalents
  of the bash setup/pull/run scripts
- README + docs/DEPLOY.md: Windows quickstart and Task Scheduler autostart

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/pull-models.ps1

@@ -0,0 +1,27 @@
+# Pull a model fleet into Ollama on Windows. Edit $models to taste.
+# Names must line up with the routing map in router.py (see docs/ROUTING.md).
+#   Run:  powershell -ExecutionPolicy Bypass -File .\scripts\pull-models.ps1
+$models = @(
+    # general / small
+    "qwen3:8b", "qwen3:14b",
+    # reasoning / agentic
+    "qwen3.6:35b-a3b", "gpt-oss:20b", "glm-4.7-flash",
+    # coding
+    "qwen3-coder:30b",
+    # vision / OCR
+    "qwen3-vl:8b", "qwen3-vl:30b-a3b-instruct",
+    # multimodal (vision + audio) — gemma4:e4b is the default ROUTER_AUDIO_MODEL
+    "gemma4:e4b", "gemma4:12b", "gemma4:26b"
+    # example HF GGUF:  "hf.co/USER/REPO:Q4_K_M"
+)
+
+$ok = @(); $fail = @(); $i = 0
+foreach ($m in $models) {
+    $i++
+    Write-Host "=== [$i/$($models.Count)] pulling $m ==="
+    ollama pull $m
+    if ($LASTEXITCODE -eq 0) { $ok += $m } else { Write-Host "!! failed: $m"; $fail += $m }
+}
+Write-Host ""
+Write-Host "done. $($ok.Count)/$($models.Count) succeeded."
+if ($fail.Count) { Write-Host "failed: $($fail -join ', ')" }