feat: complete framework migration — PowerShell, adapters, guides, profiles, tests

Completes the bootstrap repo migration with remaining files:
- PowerShell scripts (.ps1) for Windows support (bin/ + tools/)
- Runtime adapters (claude, codex, generic, pi)
- Guides (17 .md files) and profiles (domains, tech-stacks, workflows)
- Wizard test suite (6 test files from bootstrap tests/)
- Memory placeholder, audit history

Bootstrap repo (mosaic/bootstrap) is now fully superseded:
- All 335 files accounted for
- 5 build config files (package.json, tsconfig, etc.) not needed —
  monorepo has its own at packages/mosaic/
- skills-local/ superseded by monorepo skills/ with mosaic-* naming
- src/ already lives at packages/mosaic/src/

packages/mosaic/framework/remote-install.ps1

@@ -0,0 +1,38 @@
+# Mosaic Bootstrap — Remote Installer (Windows PowerShell)
+#
+# One-liner:
+#   irm https://git.mosaicstack.dev/mosaic/bootstrap/raw/branch/main/remote-install.ps1 | iex
+#
+# Or explicit:
+#   powershell -ExecutionPolicy Bypass -File remote-install.ps1
+#
+$ErrorActionPreference = "Stop"
+
+$BootstrapRef = if ($env:MOSAIC_BOOTSTRAP_REF) { $env:MOSAIC_BOOTSTRAP_REF } else { "main" }
+$ArchiveUrl = "https://git.mosaicstack.dev/mosaic/bootstrap/archive/$BootstrapRef.zip"
+$WorkDir = Join-Path $env:TEMP "mosaic-bootstrap-$PID"
+$ZipPath = "$WorkDir.zip"
+
+try {
+    Write-Host "[mosaic] Downloading bootstrap archive (ref: $BootstrapRef)..."
+    New-Item -ItemType Directory -Path $WorkDir -Force | Out-Null
+    Invoke-WebRequest -Uri $ArchiveUrl -OutFile $ZipPath -UseBasicParsing
+
+    Write-Host "[mosaic] Extracting..."
+    Expand-Archive -Path $ZipPath -DestinationPath $WorkDir -Force
+
+    $InstallScript = Join-Path $WorkDir "bootstrap\install.ps1"
+    if (-not (Test-Path $InstallScript)) {
+        throw "install.ps1 not found in archive"
+    }
+
+    Write-Host "[mosaic] Running install..."
+    & $InstallScript
+
+    Write-Host "[mosaic] Done."
+}
+finally {
+    Write-Host "[mosaic] Cleaning up temporary files..."
+    Remove-Item -Path $ZipPath -Force -ErrorAction SilentlyContinue
+    Remove-Item -Path $WorkDir -Recurse -Force -ErrorAction SilentlyContinue
+}