Merged PR 2728: edeposit verifications docs and small refactors

# Description

This PR:
- Adds half-decent docs to `stg_edeposit__verifications` and tests. I say half-decent because I would describe our tests as "as strict as the backend guidance allows". But we can't do miracles, so it stays this way for now.
- Shifts a few column operations that were being done in the `int` layer into the `stg` layer.
- Also removes a couple of fields from `int` that were marked as deprecated by Ray. Would rather not have them at all beyond `stg`.

# Checklist

- [X] The edited models and dependants run properly with production data.
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [X] I have checked for DRY opportunities with other models and docs.
- [X] I've picked the right materialization for the affected models.

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Related work items: #20123

models/intermediate/edeposit/int_edeposit__verifications.sql

@@ -7,9 +7,9 @@ select
     -- they are completely unrelated
     id_verification,
     id_booking,
-    id_user as id_user_partner,
-    id_listing as id_accommodation,
-    version,  -- V1 for Guesty and V2 for E-deposit
+    id_user_partner,
+    id_accommodation,
+    version,
     case
         when version = 'V1' then 'Guesty' when version = 'V2' then 'Edeposit' else null
     end as verification_source,
@@ -40,14 +40,11 @@ select
     listing_country,
     listing_postcode,
     pets_allowed,
-    level_of_protection_amount,
-    level_of_protection_currency,
     status_updated_at_utc,
-    cast(status_updated_at_utc as date) as status_updated_date_utc,
+    status_updated_date_utc,
     updated_at_utc,
-    cast(updated_at_utc as date) as updated_date_utc,
-    creation_at_utc as athena_creation_at_utc,
-    cast(creation_at_utc as date) as athena_creation_date_utc,
+    athena_creation_at_utc,
+    athena_creation_date_utc,
     created_at_utc,
-    cast(created_at_utc as date) as created_date_utc
+    created_date_utc
 from stg_edeposit__verifications