refactor: centralize dbt materializations in dbt_project.yml

- Move materialization configs from individual model files to dbt_project.yml
- Switch staging models to view materialization (base models now incremental)
- Add explicit intermediate folder configuration
- Remove redundant inline config blocks from 8 model files

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Author: themightychris

dbt_project.yml

@@ -30,6 +30,10 @@ vars:
 models:
   gtfsrt_sandbox:
     staging:
-      +materialized: table  # Cache locally to avoid re-downloading
+      +materialized: view
+      base:
+        +materialized: incremental
+    intermediate:
+      +materialized: view
     marts:
-      +materialized: view   # Views on top of cached staging tables
+      +materialized: view

models/marts/feed_summary.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='view'
-  )
-}}
-
 /*
     Daily summary statistics for vehicle position data.
     Shows feed activity and coverage per day.

models/marts/vehicle_activity.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='view'
-  )
-}}
-
 /*
     Hourly vehicle activity analysis.
     Shows vehicle movement patterns and coverage over time.

models/staging/base/base_service_alerts.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='incremental'
-  )
-}}
-
 SELECT 
   *,
   uuid() as _uuid

models/staging/base/base_trip_updates.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='incremental'
-  )
-}}
-
 SELECT 
   *,
   uuid() as _uuid

models/staging/base/base_vehicle_positions.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='incremental'
-  )
-}}
-
 SELECT 
   *,
   uuid() as _uuid

models/staging/stg_service_alerts.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='table'
-  )
-}}
-
 /*
     Staging model for GTFS-RT service alerts.
     Downloads data from GCS on first run and caches locally.

models/staging/stg_trip_updates.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='table'
-  )
-}}
-
 /*
     Staging model for GTFS-RT trip updates.
     Downloads data from GCS on first run and caches locally.

models/staging/stg_vehicle_positions.sql

@@ -1,9 +1,3 @@
-{{
-  config(
-    materialized='table'
-  )
-}}
-
 /*
     Staging model for GTFS-RT vehicle positions.
     Downloads data from GCS on first run and caches locally.