Add project context: referrer

[lightdash]

This PR adds a new project context entry from an AI agent review finding.

• id: referrer
• kind: definition

'Referrer' is the source from which a user was linked to the Thyme to Shine website (e.g., organic search, paid ad, social media); 'Partner name' is the name of a business partner or reseller. These are distinct dimensions in the orders explore.

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View the agent thread that motivated this entry (prompt 446a1941-7439-4de9-9641-1bff3e5e1170).

[lightdash]

🔍 Lightdash preview environment ready: https://analytics.lightdash.cloud/projects/beacc06c-8a8d-423f-88df-ab570c74d0fd/home

Compiled from branch lightdash-project-context/referrer-1784110636673. Explores may take a minute to appear while the project compiles.

[github-actions]

Lightdash Validation Results

Validating default project 8a223608-a1e4-426e-adcd-0598ea72b9f8

/opt/hostedtoolcache/Python/3.10.20/x64/lib/python3.10/site-packages/google/api_core/_python_version_support.py:255: FutureWarning: You are using a Python version (3.10.20) which Google will stop supporting in new releases of google.api_core once it reaches its end of life (2026-10-04). Please upgrade to the latest Python version, or at least Python 3.11, to continue receiving updates for google.api_core past that date.
  warnings.warn(message, FutureWarning)
/opt/hostedtoolcache/Python/3.10.20/x64/lib/python3.10/site-packages/google/api_core/_python_version_support.py:255: FutureWarning: You are using a Python version (3.10.20) which Google will stop supporting in new releases of google.cloud.dataproc_v1 once it reaches its end of life (2026-10-04). Please upgrade to the latest Python version, or at least Python 3.11, to continue receiving updates for google.cloud.dataproc_v1 past that date.
  warnings.warn(message, FutureWarning)

- SUCCESS> dbt_users 
- SUCCESS> dbt_orders 
- SUCCESS> dbt_baskets 
- SUCCESS> dbt_orders_no_preagg 
- SUCCESS> dbt_support_requests 

Compiled 5 explores, SUCCESS=5 ERRORS=0
-   Waiting for validation to finish
✔   Validation finished without errors in 17s (5 chart configuration warnings hidden, use --show-chart-configuration-warnings to show)
Done 🕶

This validation check is informational and does not block merging.

[github-actions]

🚀 Deployed 6898afe to https://analytics.lightdash.cloud/projects/86859fde-5340-480d-a308-b323f90b8628/tables