JSDoc comments emitted a second time even after commenrs on type are emitted

Personne n'a encore pris cette issue.

### 🔎 Search Terms

JSDoc, emit, comments

### 🕗 Version & Regression Information

v5.9.2
- I was unable to test this on prior versions because I was not using TS.

### ⏯ Playground Link

_No response_

### 💻 Code

```js
/**
* The template passed to generate messages
*
* @callback Template
* @param {...*} args - Arguments to the template
* @returns {any} The generated message
*/

/**
* The arguments sent with notify become the input parameters for the template.
*
* @typedef {Parameters} TemplateParams
*/

/**
* The return value from the template is yielded as the message generated from
* the subscription. The following types help define this relationship.
*
* @typedef {ReturnType} Message
*/
```

### 🙁 Actual behavior

Typescript, when emitting from JSDoc, seems to want to emit the same comments for a type declaration twice:
+ once for the export (good) and
+ once just copying over the JSDoc comment (bad).

```ts
/**
* The template passed to generate messages
*/
export type Template = (...args: any[]) => any;
/**
* The arguments sent with notify become the input parameters for the template.
*/
export type TemplateParams = Parameters;
/**
* The return value from the template is yielded as the message generated from
* the subscription. The following types help define this relationship.
*/
export type Message = ReturnType;
/**
* The template passed to generate messages
*
* @callback Template
* @param {...*} args Arguments to the template
* @returns {any} The generated message
*/
/**
* The arguments sent with notify become the input parameters for the template.
*
* @typedef {Parameters} TemplateParams
*/
/**
* The return value from the template is yielded as the message generated from
* the subscription. The following types help define this relationship.
*
* @typedef {ReturnType} Message
*/
```

### 🙂 Expected behavior

It should emit the comment just once:

```ts
/**
* The template passed to generate messages
*/
export type Template = (...args: any[]) => any;
/**
* The arguments sent with notify become the input parameters for the template.
*/
export type TemplateParams = Parameters;
/**
* The return value from the template is yielded as the message generated from
* the subscription. The following types help define this relationship.
*/
export type Message = ReturnType;
```

or even better (See #61664)

```ts
/**
* The template passed to generate messages
*
* @param Arguments to the template
* @returns The generated message
*/
export type Template = (...args: any[]) => any;
/**
* The arguments sent with notify become the input parameters for the template.
*/
export type TemplateParams = Parameters;
/**
* The return value from the template is yielded as the message generated from
* the subscription. The following types help define this relationship.
*/
export type Message = ReturnType;
```

### Additional information about the issue

_No response_

Reproduisez le rapport avec TypeScript v5.9.2 en utilisant l’extrait JavaScript/JSDoc fourni, puis suivez le chemin d’émission des déclarations responsable des commentaires en double. Ajoutez un test de régression pour les déclarations émises et vérifiez que chaque commentaire apparaît une seule fois, tout en vérifiant le comportement associé à #61664.

Rédigé par le modèle d'indexation à partir du texte de l'issue.