Add key expiry disable/enable toggle

[jul13579]

This PR adds a button to the node menu to disable (and re-enable) node key expiry, as requested by #553. Since headscale does not store the key expiry toggle state separately from the actual expiry date, re-enabling key expiry sadly currently will result in a node that expired at the time of re-enabling the key expiry. This is not the case with official tailscale, which seems to pick up the original key expiry date from before key expiry was disabled. Hence, I'm actually unsure myself if this feature adds much to the UX of headplane 🤷

[tale]

This fails integration testing and I'd also hold off as I'm changing things somewhat significantly.

[jul13579]

This fails integration testing and I'd also hold off as I'm changing things somewhat significantly.

I'm not entirely sure since I haven't looked that much into it, but I believe the tests are failing since the CI is using the latest release version of headscale. The PR adding this headscale feature however hasn't actually made it into a release version yet..

If you don't mind, I'll keep the PR update as best as I can. The changes are few enough for me to adapt them to the changes happening upstream.

[jul13579]

@tale This PR now passes integration tests for headscale versions 0.29.0+. Please tell me if you'd like anything changed about the implementation, such that it meets your requirements for integration 😉

[tale]

@pullfrog review

[pullfrog]

Important

The new key-expiry toggle needs two fixes before merge: the API parameter is sent in the wrong place, and the version capability is never used in the UI.

Reviewed changes — add a UI toggle for disabling/enabling node key expiry for Headscale 0.29+.

• Add keyExpiryCanBeDisabled capability gated to Headscale >= 0.29.0 in app/server/headscale/api/capabilities.ts.
• Add toggleExpiry API call to app/server/headscale/api/resources/nodes.ts.
• Wire a machine-menu action in app/routes/machines/components/menu.tsx and app/routes/machines/machine-actions.ts to toggle expiry.
• Add integration/unit tests for the new capability and API in tests/integration/api/nodes.test.ts and tests/unit/headscale/server-version.test.ts.

  ^{｜ Fix all ➔ ｜ Fix 👍s ➔ ｜ View workflow run ｜ Using Kimi K2 (free via Pullfrog for OSS) ｜ 𝕏}

[pullfrog]

⚠️ disableExpiry is sent as a query parameter, but Headscale's expireNode endpoint expects it in the JSON body field disableExpiry. With the current implementation the server ignores the query string and, because the body is empty, treats the request as a normal expire (sets expiry to now). Use body: { disableExpiry } instead of embedding it in the path.

Technical details

# `disableExpiry` is sent as a query parameter instead of a body field

## Affected sites
- `app/server/headscale/api/resources/nodes.ts:111` — query parameter `disableExpiry` is appended to the path

## Required outcome
- Send `disableExpiry` as a JSON body field on `POST /api/v1/node/{nodeId}/expire`.

## Suggested approach
```ts
await transport.request({
  method: "POST",
  path: `v1/node/${nodeId}/expire`,
  apiKey,
  body: { disableExpiry },
});
```

## Source
Headscale's `expireNode` handler reads `DisableExpiry` from `ExpireNodeRequestBody.DisableExpiry` with JSON tag `disableExpiry`:
https://github.com/juanfont/headscale/blob/main/hscontrol/api/v1/nodes.go

[pullfrog]

Suggested change

	<MenuItem
	onClick={() =>
	submit(
	{
	action_id: "toggle_expiry",
	node_id: node.id,
	disableExpiry: !isNoExpiry(node.expiry),
	},
	{ method: "post" },
	)
	}
	>
	{isNoExpiry(node.expiry) ? "Enable" : "Disable"} key expiry
	</MenuItem>
	{supportsToggleExpiry && (
	<MenuItem
	onClick={() =>
	submit(
	{
	action_id: "toggle_expiry",
	node_id: node.id,
	disableExpiry: !isNoExpiry(node.expiry),
	},
	{ method: "post" },
	)
	}
	>
	{isNoExpiry(node.expiry) ? "Enable" : "Disable"} key expiry
	</MenuItem>
	)}
	<MenuItem onClick={() => setModal("routes")}>Edit route settings</MenuItem>
	<MenuItem onClick={() => setModal("tags")}>Edit ACL tags</MenuItem>
	{supportsNodeOwnerChange && (
	<MenuItem onClick={() => setModal("move")}>Change owner</MenuItem>
	)}
	<MenuSeparator />