simplified the README and split parts of it into docs

docs/common_issues.md

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+
+# Common Issues
+
+## dnSpy Import Project
+
+When trying to load a disassembled project that was then reassembled with dnSpy into Visual Studio you'll encounter the error:
+
+`A numeric comparison was attempted on "$(_TargetFrameworkVersionWithoutV)" that evaluates to "" instead of a number, in condition "('$(TargetFrameworkIdentifier)' != '.NETCoreApp'`
+
+This is because the project file generated by dnSpy is adding a v to <TargetFrameworkVersion> and as well as not including _TargetFrameworkVersionWithoutV. To fix this:
+
+1. Open the .csproj file in a text editor.
+2. Near the top you'll see these two lines:
+```xml
+<TargetFrameworkVersion>v5.0</TargetFrameworkVersion>
+<TargetFrameworkIdentifier>.NETCoreApp</TargetFrameworkIdentifier>
+```
+
+Modify the first line (remove the "v"), and insert the second line, so it looks like this:
+
+```xml
+<TargetFrameworkVersion>5.0</TargetFrameworkVersion>
+<_TargetFrameworkVersionWithoutV>5.0</_TargetFrameworkVersionWithoutV>
+<TargetFrameworkIdentifier>.NETCoreApp</TargetFrameworkIdentifier>
+```
+
+Load the project as you were, and it should work.
+
+Mileage may vary with different versions of Visual Studio and .NET SDK, but this is the general fix for the issue.
+
+[Source](https://www.clearhat.org/post/how-fix-numeric-comparison-was-attempted-_targetframeworkversionwithoutv-evaluates-instead-number-condition-targetframeworkidentifier-netcoreapp)
+
+## Encoding issues in BepInEx Console
+
+"—" always shows as  ΓòÉ on BepInEx Console. Use the regular hyphen "-" instead.

docs/snippets.md

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+
+# Snippets
+
+## Periodic Timer
+
+```csharp
+private static float _timer;
+private const float INTERVAL = 10f;
+
+private static void UpdatePostfix()
+{
+    _timer += UnityEngine.Time.deltaTime;
+    if (_timer < INTERVAL) return;
+    _timer = 0f;
+    
+    // Do something every 10 seconds
+}
+```
+
+## Singleton Access
+
+```csharp
+// Most game managers use the Singleton pattern
+var instance = ManagerType.GetProperty("Instance").GetValue(null);
+```
+
+## Safe Reflection
+
+```csharp
+try
+{
+    var method = type.GetMethod("MethodName");
+    if (method == null)
+    {
+        Log.LogWarning("Method not found!");
+        return;
+    }
+    method.Invoke(instance, args);
+}
+catch (Exception ex)
+{
+    Log.LogError($"Reflection error: {ex.Message}");
+}
+```
+
+## Patch All Overloads
+
+```csharp
+var methods = targetType.GetMethods(BindingFlags.Public | BindingFlags.Instance);
+foreach (var method in methods)
+{
+    if (method.Name == "TargetMethod")
+    {
+        _harmony.Patch(method, prefix: myPrefix);
+    }
+}
+```

docs/todo.md

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+Task list placeholders:
+
+- [ ] Split mission automation into separate files in a project subfolder
+- [ ] Add mission discovery service placeholder
+- [ ] Add mission claim executor placeholder
+- [ ] Add mission claim cache placeholder
+- [ ] Add mission eligibility rules placeholder
+- [ ] Add free daily currency handler cleanup placeholder
+- [ ] Review reflection helper reuse across handlers
+
+Notes:
+- Replace placeholders with concrete implementation tasks.
+- Keep tasks short and actionable.