[Platform] Fix Albert API examples

[chr-hertel]

Q	A
Bug fix?	yes
New feature?	no
Docs?	no
Issues	Fix #842
License	MIT

@gundesli can you confirm that the examples work for you on this branch in the same way - meaning embeddings fail with 500 on internal server site?

[gundesli]

Hi @chr-hertel,

When I run the command:

php albert/embeddings.php

I get the same error.

I can see where the problem lies:

• there is an initial issue with Albert's EmbeddingsModelClient
• in the ModelCatalog, the class is incorrect for embeddings-small model

I can create a PR to fix this

[chr-hertel]

@gundesli you are very much welcome - should we merge this here already as a first step or do you want to take over completely?

[gundesli]

We can merge this one first, which concerns the examples, and I can start from the main branch in a second step, if that's okay for you.

I just noticed a small issue with the php command php albert/_model-listing.php, I get an error:

PHP Fatal error:  Uncaught Error: Class "Symfony\AI\Platform\Bridge\Albert\ApiClient" not found in /ai/examples/albert/_model-listing.php:28
Stack trace:
#0 [internal function]: Closure->{closure}()

[chr-hertel]

that'll be fixed if you execute this:

../link

it links the vendors of the examples to the local components of the branch

[gundesli]

that'll be fixed if you execute this:

../link

it links the vendors of the examples to the local components of the branch

I didn't know that trick, thank you :)