store: Fix: Remove dead roster fields from CSV in paper-dynasty-database v1_cards_get_one

graph/fixes/fix-remove-dead-roster-fields-from-csv-in-paper-dynasty-data-573491.md

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+---
+id: 573491c4-cced-4400-8029-84d6298df631
+type: fix
+title: "Fix: Remove dead roster fields from CSV in paper-dynasty-database v1_cards_get_one"
+tags: [paper-dynasty-database, fastapi, python, fix, dead-code, csv, peewee]
+importance: 0.5
+confidence: 0.8
+created: "2026-03-03T20:36:36.060493+00:00"
+updated: "2026-03-03T20:36:36.060493+00:00"
+---
+
+## Problem
+
+`v1_cards_get_one` in `app/routers_v2/cards.py` included `roster1`, `roster2`, `roster3` in the CSV output. Accessing `this_card.roster1.name` etc. raises `AttributeError` at runtime because the `Card` model has no roster fields.
+
+## Root Cause
+
+Dead code referencing non-existent model fields. The `Card` model only has `player`, `team`, `pack`, `value` fields.
+
+## Fix
+
+Removed the three roster columns from both the CSV header list and the data row.
+
+**Before:**
+```python
+data_list = [
+    ['id', 'player', 'team', 'pack', 'value', 'roster1', 'roster2', 'roster3'],
+    [..., this_card.roster1.name, this_card.roster2.name, this_card.roster3.name]
+]
+```
+
+**After:**
+```python
+data_list = [
+    ['id', 'player', 'team', 'pack', 'value'],
+    [this_card.id, this_card.player, this_card.team.abbrev, this_card.pack, this_card.value]
+]
+```
+
+## Files Changed
+
+- `app/routers_v2/cards.py`
+
+## Notes
+
+- Ruff linter hook auto-reformats the entire file on save (single → double quotes, line wrapping) — large diff but small functional change.
+- `v1_cards_patch` still accepts `roster1_id`/`roster2_id`/`roster3_id` params that are silently ignored — dead API surface for a separate cleanup.