Use Windows PowerShell daily install suggestion for package-manager update errors (Azure#7293)

* Initial plan

* fix: use platform-specific daily install suggestion

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* chore: finalize update suggestion fix

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* chore: revert unrelated extension dependency changes

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* refactor: remove DailyInstallCmd and inline Windows PowerShell command

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* Update cli/azd/cmd/update.go

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* fix: inline install-azd.ps1 URL to fix undefined update.InstallScriptURL

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---------

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 4 people

cli/azd/cmd/update.go

@@ -201,7 +201,8 @@ func (a *updateAction) Run(ctx context.Context) (*actions.ActionResult, error) {
 				Err: fmt.Errorf("daily builds aren't available via %s", installedBy),
 				Suggestion: fmt.Sprintf(
 					"Uninstall first with: %s\nThen install daily with: "+
-						"curl -fsSL https://aka.ms/install-azd.sh | bash -s -- --version daily",
+						"powershell -ex AllSigned -c \"Invoke-RestMethod 'https://aka.ms/install-azd.ps1'"+
+						" -OutFile 'install-azd.ps1'; ./install-azd.ps1 -Version 'daily'\"",
 					uninstallCmd),
 			},
 		}

cli/azd/docs/design/azd-update.md

@@ -306,7 +306,7 @@ Switching between a package manager and direct installs is **not supported** via
 
 | Scenario | Guidance |
 |----------|----------|
-| Package manager → daily | Show: "Daily builds aren't available via {brew/winget/choco}. Uninstall with `{uninstall command}`, then install daily with `curl -fsSL https://aka.ms/install-azd.sh \| bash -s -- --version daily`" |
+| Package manager → daily | Show: "Daily builds aren't available via {brew/winget/choco}. Uninstall with `{uninstall command}`, then install daily with the platform-appropriate daily install command (`install-azd.ps1` on Windows, `install-azd.sh` on Linux/macOS)" |
 | Script/daily → package manager | Show: "To switch to {brew/winget/choco}, first uninstall the current version, then install via your package manager." |
 
 This avoids the silent symlink overwrite problem that exists today with conflicting install methods.
@@ -377,4 +377,3 @@ The startup "out of date" warning banner is suppressed during `azd update` (stal
 When the auto-update elevation warning is shown ("azd version X.Y.Z has been downloaded. Run 'azd update' to apply it."), the "out of date" warning is also suppressed to avoid showing two redundant warnings about the same condition.
 
 ---
-