feat(cli)!: expire tokens by default (#21783)

## Summary

> NOTE: Calling this out as a breaking change in case existing consumers
of the CLI depend on being able to see expired tokens OR being able to
delete tokens immediately.

Updates the `coder tokens rm` command to immediately expire a token by
ID, preserving the token record for audit trail purposes. Tokens can
still be deleted by passing `--delete`.

## Problem

During an incident on dev.coder.com, operators needed to urgently expire
an API key that was stuck in a hot loop. The only way to do this was via
direct database access:

```sql
UPDATE api_keys SET expires_at = NOW() WHERE id = '...';
```

This is not ideal for operators who may not have direct DB access or
want to avoid manual SQL.

## Solution

This PR adds:

- **API endpoint**: `PUT /api/v2/users/{user}/keys/{keyid}/expire` -
Sets the token's `expires_at` to now
- **SDK method**: `ExpireAPIKey(ctx, userID, keyID)` 
- **Updates CLI**: `coder tokens rm <name|id|token>` now _expires_ by
default. You can still delete by passing the `--delete` flag. The `coder
tokens list` command now also hides expired tokens by default. You can
`--include-expired` if needed to include them.
- **Audit logging**: The expire action is logged with old and new key
states

## Test plan

- Tests cover: owner expiring own token, admin expiring other user's
token, non-admin cannot expire other's token, 404 for non-existent token

Closes #21782

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

coderd/apidoc/swagger.json

@@ -7417,6 +7417,52 @@
 				}
 			}
 		},
+		"/users/{user}/keys/{keyid}/expire": {
+			"put": {
+				"security": [
+					{
+						"CoderSessionToken": []
+					}
+				],
+				"tags": ["Users"],
+				"summary": "Expire API key",
+				"operationId": "expire-api-key",
+				"parameters": [
+					{
+						"type": "string",
+						"description": "User ID, name, or me",
+						"name": "user",
+						"in": "path",
+						"required": true
+					},
+					{
+						"type": "string",
+						"format": "string",
+						"description": "Key ID",
+						"name": "keyid",
+						"in": "path",
+						"required": true
+					}
+				],
+				"responses": {
+					"204": {
+						"description": "No Content"
+					},
+					"404": {
+						"description": "Not Found",
+						"schema": {
+							"$ref": "#/definitions/codersdk.Response"
+						}
+					},
+					"500": {
+						"description": "Internal Server Error",
+						"schema": {
+							"$ref": "#/definitions/codersdk.Response"
+						}
+					}
+				}
+			}
+		},
 		"/users/{user}/login-type": {
 			"get": {
 				"security": [