chore(standards): replace local standards/ with platform stub (Phase 1)

[kristopherjturner]

Phase 1 of the AzureLocal platform rollout per ADR-0002.

• Deletes standards/ (drifted duplicates of azurelocal.github.io/standards/)
• Adds STANDARDS.md at repo root — a 6-line stub linking to AzureLocal/platform/standards/

From here on, standards edits are PRs against AzureLocal/platform.

Test plan

• Repo still builds / docs still render (no internal link references into the deleted standards/ folder remain)
• STANDARDS.md link-checks

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Phase 1 of the standards single-source rollout by removing the repo-root standards/ documentation set and replacing it with a root-level STANDARDS.md stub that points readers to the centralized standards in AzureLocal/platform.

Changes:

• Deleted the repo-root standards/*.md pages (previously a local copy of org standards).
• Added STANDARDS.md at the repo root linking to the canonical standards source in AzureLocal/platform.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
standards/automation.md	Deleted repo-root local standards page.
standards/documentation.md	Deleted repo-root local standards page.
standards/examples.md	Deleted repo-root local standards page.
standards/index.md	Deleted repo-root standards index page.
standards/infrastructure.md	Deleted repo-root local standards page.
standards/naming.md	Deleted repo-root local standards page.
standards/scripting.md	Deleted repo-root local standards page.
standards/solutions.md	Deleted repo-root local standards page.
standards/variables.md	Deleted repo-root local standards page.
STANDARDS.md	Added stub pointing to AzureLocal/platform/standards and rendered standards site.

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[Copilot]

Line 3 states this repo “does not keep a local copy”, but the repo still contains a full local standards set under docs/standards/ (e.g., docs/standards/index.md, docs/standards/scripting.md, etc.). Please either remove/relocate those pages as part of this migration, or adjust the wording here to avoid an incorrect/misleading claim (e.g., clarify what “local copy” refers to).

Suggested change

	AzureLocal organization standards are maintained centrally in the [`AzureLocal/platform`](https://github.com/AzureLocal/platform) repository. This repo does **not** keep a local copy.
	AzureLocal organization standards are maintained centrally in the [`AzureLocal/platform`](https://github.com/AzureLocal/platform) repository. This repo does **not** maintain the canonical copy of those standards; any local standards pages are informational only.

[Copilot]

With standards/ at the repo root being deleted, there are still internal docs that tell readers to use standards/ for canonical standards and/or point at the old azurelocal.github.io/standards/ location (e.g., tools/vmfleet/repo-management/README.md:25, repo-management/README.md:18). Consider updating those references to point to this STANDARDS.md (or directly to AzureLocal/platform/standards) to prevent broken guidance.

Suggested change

	Changes to any standard are PRs against `AzureLocal/platform`, not against this repo.
	Changes to any standard should be made in [`AzureLocal/platform/standards`](https://github.com/AzureLocal/platform/tree/main/standards) via a PR against `AzureLocal/platform`, not against this repo.