feat: 내 잔교 변화량 API 추가 및 투자 prompt 고도화

[rookedsysc]

No description provided.

[github-actions]

Backend 테스트 커버리지 리포트

File	Stmts	Miss	Cover	Missing
main.py	7	7	0%	7, 9, 12–13, 16–17, 21
ai/client
open_ai_client.py	13	5	61%	12, 15, 27–29
ai/const
constans.py	2	0	100%
ai/dto
ai_analysis_response.py	18	0	100%
ballance/model
balance.py	11	0	100%
ballance/repository
balance_repository.py	18	9	50%	18, 22, 25, 37, 39–40, 42–44
coin/model
coin.py	11	0	100%
coin/repository
coin_repository.py	20	9	55%	18, 22–23, 27, 30, 34–35, 39–40
coin/service
coin_service.py	30	19	36%	20–21, 25, 37, 39–41, 46–47, 50–51, 63–64, 66–67, 72–73, 78–79
common/model
base.py	28	13	53%	24, 26–27, 29–33, 39, 50, 60, 70–71
common/repository
base_repository.py	26	14	46%	25–26, 30–33, 37, 41–42, 46–48, 52–53
configs
config.py	18	3	83%	46–48
trade/dto
transaction_response.py	23	0	100%
trade/model
enums.py	16	0	100%
trade.py	26	2	92%	48, 53
trade/repository
trade_repository.py	22	11	50%	19, 23, 28, 36, 41, 53, 56–57, 60, 62–63
trade/service
trade_service.py	155	4	97%	110–111, 114, 213
upbit/client
upbit_client.py	44	27	38%	14–16, 27, 29–30, 34, 47, 58, 60–61, 65, 69–71, 74, 83, 92–93, 101–102, 105–109, 111
upbit/dto
coin_balance.py	4	0	100%
my_ballance_response.py	6	0	100%
ohlcv_dto.py	12	0	100%
TOTAL	510	123	75%

Tests	Skipped	Failures	Errors	Time
29	0 💤	0 ❌	0 🔥	0.931s ⏱️