Add docs folder

docs/docs/architecture/_category_.json

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+{
+  "label": "Architecuture",
+  "position": 2,
+  "link": {
+    "type": "generated-index",
+    "description": "Architecuture"
+  }
+}

docs/docs/architecture/er.md

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+---
+sidebar_position: 3
+---
+
+# DataBase
+
+![ER](./img/er.svg)

docs/docs/architecture/functions.md

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+---
+sidebar_position: 2
+---
+
+## Functions
+
+## MUST
+
+- Test cases can be managed.
+- Multiple people can operate/view apps for team development
+
+## SHOULD
+
+- Easily self host the application (docker?)
+- Test case descriptions can be written in markdown.
+- Import the results of automated testing tools (Vitest, Google Test...) and test them manually. Import the results of automated testing tools (Vitest, Google Test...) and integrate them with manual test results
+

docs/docs/architecture/index.md

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+---
+sidebar_position: 1
+---
+
+# Architecture
+
+Separate the front-end server that provides the UI and the API server that provides the API to make the system loosely coupled.
+
+## Frontend
+
+Create UI with React, Next.js.
+
+## Backend(API server)
+
+It does not generate any views, but only has API functions.
+
+- DB access
+- Authentication, authorization

docs/docs/architecture/integration.md

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+---
+sidebar_position: 4
+---
+
+# Integration
+
+We would like to be able to display results not only from manual test management, but also from automated test tools such as Vitest, Google Test, Selenium, etc.
+
+Since the JUnit xml format is the de facto standard, we will import via the xml file. TestPlat itself should also be able to report manual test results in Junit XML format.
+
+![integration](./img/integration.png)
+
+```xml title="Junit xml"
+<?xml version="1.0" encoding="UTF-8"?>
+<testsuites time="15.682687">
+    <testsuite name="Tests.Registration" time="6.605871">
+        <testcase name="testCase1" classname="Tests.Registration" time="2.113871" />
+        <testcase name="testCase2" classname="Tests.Registration" time="1.051" />
+        <testcase name="testCase3" classname="Tests.Registration" time="3.441" />
+    </testsuite>
+    <testsuite name="Tests.Authentication" time="9.076816">
+        <testsuite name="Tests.Authentication.Login" time="4.356">
+            <testcase name="testCase4" classname="Tests.Authentication.Login" time="2.244" />
+            <testcase name="testCase5" classname="Tests.Authentication.Login" time="0.781" />
+            <testcase name="testCase6" classname="Tests.Authentication.Login" time="1.331" />
+        </testsuite>
+        <testcase name="testCase7" classname="Tests.Authentication" time="2.508" />
+        <testcase name="testCase8" classname="Tests.Authentication" time="1.230816" />
+        <testcase name="testCase9" classname="Tests.Authentication" time="0.982">
+            <failure message="Assertion error message" type="AssertionError">
+                <!-- Call stack printed here -->
+            </failure>
+        </testcase>
+    </testsuite>
+</testsuites>
+```

docs/docs/index.md

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+---
+sidebar_position: 1
+---
+
+# TestPlat
+
+Open Source Test Case Management Web Application