Add stg_host_project_ordinals staging model

[Diego-Turno]

Business context

Turno is a marketplace connecting short-term-rental hosts with cleaners. A host books a cleaning project, a cleaner completes it, and the host's payment method is charged. Growth and lifecycle analyses need to know when each host account hit its project milestones — specifically the completion dates of the account's 1st, 2nd, 3rd, and 5th marketplace projects, plus the 1st completed project overall (marketplace or not).

This PR adds stg_host_project_ordinals, one row per account_id, exposing those milestone timestamps so downstream models can measure activation and repeat usage (e.g. "how long from first to second marketplace project?").

Business definitions the model must follow:

• The analyst was asked to consider the paid date as the project's completion date: a project is completed when its payment is captured. There is exactly one successful payment per completed project, and its captured_at timestamp is the completion date used here.
• Marketplace projects are payment logs with from_marketplace = 1; everything else is non-marketplace.
• Ordinals are chronological, oldest first: the "2nd marketplace project" is the 2nd-earliest capture for that account.

Team rules

1. All SQL syntax must be in uppercase.
2. Descriptions and tests live only in the YML files (code comments allowed when needed).
3. Never use direct paths to database tables — always use the jinja references:
   • Production tables: {{ source('production', 'table_name') }}
   • dbt tables: {{ ref('table_name') }}
4. Assume a project only has one successful payment.
5. Configs belong in the SQL file, not the YML.

Tables and columns used

payment_logs (production) — one row per payment attempt

Column	Description
host_id	The host being charged
project_id	The project being paid for
from_marketplace	1 if the payment is for a marketplace project, 0 otherwise
captured_at	When money actually moved; NULL if it never did

hosts (production) — one row per host

Column	Description
id	Host primary key
account_id	The account the host belongs to

projects (production) — one row per project

Column	Description
id	Project primary key
completed_at	When the cleaner completed the project

[Annallisboa]

Its missing the 1st one marketing place completed.

[Annallisboa]

DESC should not be used here, because we need the oldest first

[Annallisboa]

the ORDER BY clause should be captered_at

[Annallisboa]

pl.from_marketplace should be = 1

[Annallisboa]

the ORDER BY clause should be captered_at

[Annallisboa]

we need to use {{ source('production', 'table_name') }}