Remove duplicate JSDoc block in Jwt.verify method

[Copilot]

Addresses feedback from PR #20 regarding duplicate JSDoc comment blocks in libs/Jwt.ts.

Changes

• Removed duplicate JSDoc block at lines 74-81 for the verify method
• Retained the complete JSDoc block (lines 82-93) which includes @throws and @example tags

The verify method now has a single, complete documentation block:

/**
 * Online verification that performs a Keycloak server `userinfo` call
 * to make sure the token is still valid on the server-side. If the
 * call completes successfully the token is accepted and returned as a
 * `Token` wrapper for callers to inspect claims.
 *
 * @param accessToken - The JWT string to verify via Keycloak server
 * @returns A Promise resolving to a `Token` instance when userinfo succeeds
 * @throws {AxiosError} When the `userinfo` endpoint returns a non-2xx response
 * @example
 * const token = await jwt.verify('ey...')
 */
async verify(accessToken: string): Promise<Token> {

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