docs: bring the cheatsheet up to date with the runtime

[DylanPiercey]

Brings the shipped routing cheatsheet in line with the runtime: body also exists for QUERY and is gated by a validator rather than the verb, verb-specific middleware is skipped for other methods, pages render for GET/POST/QUERY with HEAD served from GET, +500 receives input.error, the full set of escapable path characters and optional segments, ctx.search as a parsed object without a validator. Adds the missing context members and method defaults, options-only middleware and root→leaf option merging, lazy validators, body error codes and limits, and Run.href's search/hash options. Wording aligned with the docs site's style guide.

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[changeset-bot]

🦋 Changeset detected

Latest commit: 0263ada

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@marko/run	Patch

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• packages/run/cheatsheet.md

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Walkthrough

The runtime cheatsheet now documents routing, handler behavior, request context properties, parsed query access, HEAD fallback, validation rules, request error statuses, body-size limits, response handling, streaming, middleware usage, nested layouts, and typed-link options. A patch changeset records these updates for @marko/run.

Merge Risk: 🔵 Low · up to 0263a

The cheatsheet update still includes layout examples with an incorrect nested-renderer input, which could cause users to copy examples that do not render. The PR is otherwise mergeable, but this documentation issue should be corrected or explicitly accepted before relying on the examples.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description clearly explains the cheatsheet updates and directly matches the documented runtime changes.
Title check	✅ Passed	The title clearly identifies the main change: updating the cheatsheet to match the runtime.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

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• Commit unit tests in branch dpiercey-ws-work-nfs9b3

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Actionable comments posted: 3

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Inline comments:
In `@packages/run/cheatsheet.md`:
- Line 65: Update the Run.GET/Run.HEAD documentation to state that when no HEAD
handler exists, HEAD runs the GET handler and next() returns a bodyless response
before the page template renders; remove the vague “with the body stripped”
wording while preserving the surrounding method-dispatch guidance.
- Line 68: Update the size-limit documentation near the validator description to
state separately that json.maxBytes and form.maxFileBytes default to 1 MiB,
while form.maxBytes defaults to maxFiles multiplied by maxFileBytes—20 MiB when
using the default maxFiles value.
- Line 10: Update both layout examples in the cheatsheet to use the correct
nested-content input for the selected Marko API: use input.renderBody for
class-API layouts, or explicitly identify the examples as tags-API examples if
retaining input.content. Ensure nested pages and layouts continue to render.

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• .changeset/cheatsheet-audit.md
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