refactor(model): extract model dir && concept

[mydearxym]

No description provided.

[codecov]

Codecov Report

Merging #386 (3ec7df5) into dev (8d82bf5) will decrease coverage by 0.57%.
The diff coverage is 100.00%.

❗ Current head 3ec7df5 differs from pull request most recent head 5d82503. Consider uploading reports for the commit 5d82503 to get more accurate results

@@            Coverage Diff             @@
##              dev     #386      +/-   ##
==========================================
- Coverage   88.18%   87.60%   -0.58%     
==========================================
  Files          95       63      -32     
  Lines        1202     1138      -64     
==========================================
- Hits         1060      997      -63     
+ Misses        142      141       -1     

Impacted Files	Coverage Δ
...groupher_server/accounts/delegates/achievements.ex	100.00% <ø> (ø)
...roupher_server/accounts/delegates/customization.ex	100.00% <ø> (ø)
lib/groupher_server/accounts/delegates/fans.ex	100.00% <ø> (ø)
lib/groupher_server/accounts/delegates/mails.ex	100.00% <ø> (ø)
...ib/groupher_server/cms/delegates/community_curd.ex	100.00% <ø> (ø)
...oupher_server/cms/delegates/community_operation.ex	100.00% <ø> (ø)
lib/groupher_server/cms/helper/utils.ex	80.00% <ø> (ø)
lib/groupher_server/delivery/delegates/mentions.ex	100.00% <ø> (ø)
...roupher_server/delivery/delegates/notifications.ex	100.00% <ø> (ø)
lib/groupher_server/delivery/delegates/utils.ex	100.00% <ø> (ø)
... and 34 more

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