chore: pull all docs into sources/

sources/docs/schema.md

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+# Schema
+
+- schools
+  - id
+  - name
+
+- years
+  - id
+  - year
+
+- school_years
+  - id
+  - school_id
+  - year_id
+
+- classrooms
+  - id
+  - school_year_id
+  - name
+  - grade
+  - teacher_id
+
+Inheritance?
+- users
+  - id
+  - type
+    - student
+    - teacher
+    - admin
+  - username
+  - password
+  - email
+
+- user_invites
+  - id
+  - invite_code
+  - type
+    - student
+    - teacher
+    - admin
+  - date
+
+- stocks
+  - id
+  - name
+  - ticker
+  - ...company details
+
+- stock_prices
+  - id
+  - stock_id
+  - date
+  - open
+  - high
+  - low
+  - close
+  - volume
+  - adj_close
+
+- stock_dividends
+  - id
+  - stock_id
+  - date
+  - dividend
+
+!!!! Use Transactions
+- portfolio
+  - id
+  - user_id
+  - cash_amount
+
+- portfolio_transactions
+  - id
+  - portfolio_id
+  - actor_id
+  - date
+  - amount
+  - type
+    - deposit
+    - withdrawal
+
+- portfolio_stocks
+  - id
+  - portfolio_id
+  - stock_id
+  - shares
+
+- portfolio_stock_transactions
+  - id
+  - portfolio_stock_id
+  - stock_id
+  - date
+  - shares
+  - price
+  - type
+    - buy
+    - sell
+    - dividend
+  - ...other details