docs(eslint-plugin): add docs for signal-store-feature-should-use-gen…

…eric-type (#4521)

projects/ngrx.io/content/guide/eslint-plugin/rules/prefer-protected-state.md

@@ -18,25 +18,21 @@ This rule ensures that state changes are only managed by the Signal Store to pre
 Examples of **incorrect** code for this rule:
 
 ```ts
-// SUGGESTION ❗
 const Store = signalStore(
   { protectedState: false },
-    ~~~~~~~~~~~~~~~~~~~~~ [warning]
   withState({}),
 );
 ```
 
 Examples of **correct** code for this rule:
 
 ```ts
-// GOOD ✅
 const Store = signalStore(
   withState({}),
 );
 ```
 
 ```ts
-// GOOD ✅
 const Store = signalStore(
   { protectedState: true },
   withState({}),

projects/ngrx.io/content/guide/eslint-plugin/rules/signal-store-feature-should-use-generic-type.md

@@ -10,3 +10,65 @@ A custom Signal Store feature that accepts an input should define a generic type
 
 <!-- Everything above this generated, do not edit -->
 <!-- MANUAL-DOC:START -->
+
+## Rule Details
+
+This rule ensure that a Signal Store feature uses a generic type to define the feature state.
+
+Examples of **incorrect** code for this rule:
+
+```ts
+const withY = () => signalStoreFeature(
+    { state: type<{ y: number }>() },
+    withState({})
+  );
+```
+
+```ts
+const withY = () => {
+  return signalStoreFeature(
+    type<{ state: { y: number } }>(),
+    withState({})
+  );
+}
+```
+
+```ts
+function withY() {
+  return signalStoreFeature(
+    type<{ state: { y: number } }>(),
+    withState({})
+  );
+}
+```
+
+Examples of **correct** code for this rule:
+
+```ts
+const withY = <Y>() => signalStoreFeature(
+  { state: type<{ y: Y }>() },
+  withState({})
+);
+```
+
+```ts
+const withY = <_>() => {
+  return signalStoreFeature(
+    type<{ state: { y: number } }>(),
+    withState({})
+  );
+};
+```
+
+```ts
+function withY<_>() {
+  return signalStoreFeature(
+    { state: type<{ y: Y }>() },
+    withState({})
+  );
+}
+```
+
+## Further reading
+
+- [Known TypeScript Issues with Custom Store Features](guide/signals/signal-store/custom-store-features#known-typescript-issues)