fix: installer auto-adds mosaic bin to PATH with clear status output

- install.sh: detects shell profile (zsh/bash/profile), adds PATH entry if missing
- install.ps1: adds to User PATH via SetEnvironmentVariable if missing
- Both are idempotent — show "already in PATH ✓" on re-run
- mosaic/mosaic.ps1: accept "help" and "version" as bare subcommands

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

bin/mosaic

@@ -132,8 +132,8 @@ case "$command" in
   doctor)     run_doctor "$@" ;;
   sync)       run_sync "$@" ;;
   bootstrap)  run_bootstrap "$@" ;;
-  -h|--help)  usage ;;
-  -v|--version) echo "mosaic $VERSION" ;;
+  help|-h|--help)  usage ;;
+  version|-v|--version) echo "mosaic $VERSION" ;;
   *)
     echo "[mosaic] Unknown command: $command" >&2
     echo "[mosaic] Run 'mosaic --help' for usage." >&2

bin/mosaic.ps1

@@ -108,8 +108,8 @@ switch ($command) {
         Write-Host "[mosaic] NOTE: mosaic-bootstrap-repo requires bash. Use Git Bash or WSL." -ForegroundColor Yellow
         & (Join-Path $MosaicHome "bin\mosaic-bootstrap-repo") @remaining
     }
-    { $_ -in "-h", "--help" } { Show-Usage }
-    { $_ -in "-v", "--version" } { Write-Host "mosaic $Version" }
+    { $_ -in "help", "-h", "--help" } { Show-Usage }
+    { $_ -in "version", "-v", "--version" } { Write-Host "mosaic $Version" }
     default {
         Write-Host "[mosaic] Unknown command: $command" -ForegroundColor Red
         Write-Host "[mosaic] Run 'mosaic --help' for usage."

install.ps1

@@ -66,8 +66,21 @@ catch {
     Write-Host "[mosaic-install] WARNING: doctor reported issues (run mosaic-doctor.ps1 -FailOnWarn)" -ForegroundColor Yellow
 }
 
+# Ensure mosaic bin is in User PATH persistently
+$mosaicBin = Join-Path $TargetDir "bin"
+$userPath = [Environment]::GetEnvironmentVariable("Path", "User")
+if ($userPath -and $userPath.Split(";") -contains $mosaicBin) {
+    Write-Host "[mosaic-install] PATH: $mosaicBin already in User PATH ✓"
+}
+else {
+    $newPath = if ($userPath) { "$mosaicBin;$userPath" } else { $mosaicBin }
+    [Environment]::SetEnvironmentVariable("Path", $newPath, "User")
+    $env:Path = "$mosaicBin;$env:Path"
+    Write-Host "[mosaic-install] PATH: Added $mosaicBin to User PATH ✓"
+    Write-Host "[mosaic-install] Open a new terminal for PATH changes to take effect."
+}
+
 Write-Host "[mosaic-install] Done."
-Write-Host "[mosaic-install] Add to PATH: `$env:USERPROFILE\.config\mosaic\bin"
 
 $soulPath = Join-Path $TargetDir "SOUL.md"
 if (-not (Test-Path $soulPath)) {

install.sh

@@ -42,7 +42,31 @@ if ! "$TARGET_DIR/bin/mosaic-doctor"; then
   echo "[mosaic-install] WARNING: doctor reported issues (run ~/.config/mosaic/bin/mosaic-doctor --fail-on-warn)" >&2
 fi
 
-echo "[mosaic-install] Add to PATH: export PATH=\"$TARGET_DIR/bin:$PATH\""
+# Ensure ~/.config/mosaic/bin is in PATH persistently
+PATH_LINE="export PATH=\"$TARGET_DIR/bin:\$PATH\""
+
+# Find the right shell profile
+if [[ -n "${ZSH_VERSION:-}" ]] || [[ "$(basename "${SHELL:-}")" == "zsh" ]]; then
+  SHELL_PROFILE="$HOME/.zshrc"
+elif [[ -f "$HOME/.bashrc" ]]; then
+  SHELL_PROFILE="$HOME/.bashrc"
+elif [[ -f "$HOME/.profile" ]]; then
+  SHELL_PROFILE="$HOME/.profile"
+else
+  SHELL_PROFILE="$HOME/.profile"
+fi
+
+if grep -qF "$TARGET_DIR/bin" "$SHELL_PROFILE" 2>/dev/null; then
+  echo "[mosaic-install] PATH: $TARGET_DIR/bin already in $SHELL_PROFILE ✓"
+else
+  {
+    echo ""
+    echo "# Mosaic agent framework"
+    echo "$PATH_LINE"
+  } >> "$SHELL_PROFILE"
+  echo "[mosaic-install] PATH: Added $TARGET_DIR/bin to $SHELL_PROFILE ✓"
+  echo "[mosaic-install] Run 'source $SHELL_PROFILE' or open a new terminal to activate."
+fi
 
 if [[ ! -f "$TARGET_DIR/SOUL.md" ]]; then
   echo ""