Misleading error when attempting to add a socket file

### Checklist

- [X] This is a bug report, not a question. Ask questions on [discuss.ipfs.tech](https://discuss.ipfs.tech/c/help/13).
- [X] I have searched on the [issue tracker](https://github.com/ipfs/kubo/issues?q=is%3Aissue) for my bug.
- [X] I am running the latest [kubo version](https://dist.ipfs.tech/#kubo) or have an issue updating.

### Installation method

Homebrew

### Version

```Text
Kubo version: 0.29.0-3f0947b74
Repo version: 15
System version: amd64/darwin
Golang version: go1.22.4
```

### Config

```json
{
"API": {
"HTTPHeaders": {}
},
"Addresses": {
"API": "/ip4/0.0.0.0/tcp/5001",
"Announce": [],
"AppendAnnounce": [],
"Gateway": "/ip4/0.0.0.0/tcp/8080",
"NoAnnounce": [],
"Swarm": [
"/ip4/0.0.0.0/tcp/4001",
"/ip6/::/tcp/4001",
"/ip4/0.0.0.0/udp/4001/quic-v1",
"/ip4/0.0.0.0/udp/4001/quic-v1/webtransport",
"/ip6/::/udp/4001/quic-v1",
"/ip6/::/udp/4001/quic-v1/webtransport"
]
},
"AutoNAT": {},
"Bootstrap": [
"/ip4/192.168.0.31/tcp/4001/p2p/12D3KooWEjJsgbNhaS1KHabP9agdH1zt9ydiqNHPccqVFoxeurqa"
],
"DNS": {
"Resolvers": {}
},
"Datastore": {
"BloomFilterSize": 0,
"GCPeriod": "1h",
"HashOnRead": false,
"Spec": {
"mounts": [
{
"child": {
"path": "blocks",
"shardFunc": "/repo/flatfs/shard/v1/next-to-last/2",
"sync": true,
"type": "flatfs"
},
"mountpoint": "/blocks",
"prefix": "flatfs.datastore",
"type": "measure"
},
{
"child": {
"compression": "none",
"path": "datastore",
"type": "levelds"
},
"mountpoint": "/",
"prefix": "leveldb.datastore",
"type": "measure"
}
],
"type": "mount"
},
"StorageGCWatermark": 90,
"StorageMax": "10GB"
},
"Discovery": {
"MDNS": {
"Enabled": true
}
},
"Experimental": {
"FilestoreEnabled": true,
"Libp2pStreamMounting": false,
"OptimisticProvide": false,
"OptimisticProvideJobsPoolSize": 0,
"P2pHttpProxy": false,
"StrategicProviding": false,
"UrlstoreEnabled": false
},
"Gateway": {
"DeserializedResponses": null,
"DisableHTMLErrors": null,
"ExposeRoutingAPI": null,
"HTTPHeaders": {},
"NoDNSLink": false,
"NoFetch": false,
"PublicGateways": null,
"RootRedirect": ""
},
"Identity": {
"PeerID": "(redacted)"
},
"Import": {
"CidVersion": null,
"HashFunction": null,
"UnixFSChunker": null,
"UnixFSRawLeaves": null
},
"Internal": {},
"Ipns": {
"RecordLifetime": "",
"RepublishPeriod": "",
"ResolveCacheSize": 128
},
"Migration": {
"DownloadSources": [],
"Keep": ""
},
"Mounts": {
"FuseAllowOther": false,
"IPFS": "/ipfs",
"IPNS": "/ipns"
},
"Peering": {
"Peers": null
},
"Pinning": {
"RemoteServices": {}
},
"Plugins": {
"Plugins": null
},
"Provider": {
"Strategy": ""
},
"Pubsub": {
"DisableSigning": false,
"Router": ""
},
"Reprovider": {},
"Routing": {
"Methods": null,
"Routers": null
},
"Swarm": {
"AddrFilters": null,
"ConnMgr": {},
"DisableBandwidthMetrics": false,
"DisableNatPortMap": false,
"RelayClient": {},
"RelayService": {},
"ResourceMgr": {},
"Transports": {
"Multiplexers": {},
"Network": {},
"Security": {}
}
}
}
```

### Description

## Steps to reproduce
1. Make sure the IPFS daemon is running.
2. Create an empty Git repository.
3. Inside the repository, execute `ipfs add -r .git`. This command runs without problems.
4. Start a [filesystem monitor daemon](https://git-scm.com/docs/git-fsmonitor--daemon):
```
git fsmonitor--daemon start
```
5. Execute `ipfs add -r .git` again. This time, you will get an error message:
```
Error: read tcp 127.0.0.1:57353->127.0.0.1:5001: use of closed network connection
```
However, the message is misleading. To discover the real cause, you need to stop the IPFS daemon and run `ipfs add -r .git` again. Only then you will get the correct error message:
```
Error: unrecognized file type for .git/fsmonitor--daemon.ipc: Srwxr-xr-x
```

While the failure to add a socket file is in itself reasonable, the error message it causes is totally misleading.

(As an aside, I don't understand why the message depends on the state of the IPFS daemon, and why adding a file to a local node involves a network connection.)