5011: Revamp analytics r=ManyTheFish a=irevoire
# Pull Request
## Related issue
Fixes https://github.com/meilisearch/meilisearch/issues/5009
## What does this PR do?
- Force every analytics to go through a trait that forces you to handle aggregation correcty
- Put the code to retrieve the `user-agent`, `timestamp` and `requests.total_received` in common between all aggregates, so there is no mistake
- Get rids of all the different channel for each kind of event in favor of an any map
- Ensure that we never [send empty event ever again](https://github.com/meilisearch/meilisearch/pull/5001)
- Merge all the sub-settings route into a global « Settings Updated » event.
- Fix: When using one of the three following feature, we were not sending any analytics IF they were set from the global route
- /non-separator-tokens
- /separator-tokens
- /dictionary
Co-authored-by: Tamo <tamo@meilisearch.com>
5008: Display vectors when no custom vectors where ever provided r=irevoire a=dureuill
# Pull Request
## Related issue
Fixes the issue reported on [Discord](https://discord.com/channels/1006923006964154428/1294653031958446080/1295336784896589967).
## What does this PR do?
- Normal behavior of Meilisearch is to hide `_vectors` even when `retrieveVectors: true` when there is an explicit list of displayed attributes that does not contain vectors
- However, this relied on the field id for the `_vectors` field to exist, which wasn't the case when no `_vectors` was manually provided to documents. This would often be the case for people using autoembedders such as the OpenAI integration.
- This PR fixes the behavior by looking for the `_vectors` string in the `displayedAttributes` when there is no `_vectors` fid.
- This PR also adds a test for this specific situation, that would fail before the PR, and pass after the PR
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
4938: Remove default embedder r=ManyTheFish a=dureuill
# Pull Request
## Related issue
Fixes#4738
## What does this PR do?
[See public usage](https://meilisearch.notion.site/v1-11-AI-search-changes-0e37727193884a70999f254fa953ce6e#1044b06b651f80edb9d4ef6dc367bad0)
- Remove `hybrid.embedder` boolean from analytics because embedder is now mandatory and so the boolean would always be `true`
- Rework search kind so that a search without query but with vector is a vector search regardless of (non-zero) semantic ratio
Co-authored-by: Louis Dureuil <louis@meilisearch.com>
