Refine IntelliJ platform, PSI, and KDoc keep rules in rules.pro

| Metric | Before (`c36cc47`) | After (`cf41522`) | Difference | Change (%) |
| :--- | :--- | :--- | :--- | :--- |
| **Compressed JAR Size** | 15.52 MiB | **14.91 MiB** | **-626.94 KiB** | **-3.96%** |
| **Uncompressed Size** | 31.37 MiB | **29.88 MiB** | **-1.49 MiB** | **-4.75%** |
| **Total Classes** | 10,526 | **10,223** | **-303** | **-2.88%** |
| **Total Methods** | 74,531 | **70,771** | **-3,760** | **-5.04%** |
| **Total Fields** | 23,174 | **22,715** | **-459** | **-1.98%** |

| Segment / Symbol | File Size Diff | VM Size Diff | Change (%) |
| :--- | :--- | :--- | :--- |
| `[__DATA,__data]` | +544 B | +544 B | +48.0% |
| `[__TEXT]` | +176 B | +176 B | +1.1% |
| `_sbom` | +24 B | +24 B | +0.7% |
| `[__DATA]` | -24 B | -24 B | -0.1% |
| `_IsolateEnterStub__JavaMainWrapper...` | -176 B | -176 B | -0.0% |
| `_sbom_length` | -544 B | -544 B | -23.9% |
| **TOTAL** | **0 B** | **0 B** | **0.0%** |

Author: Goooler

core/src/main/rules.pro

@@ -15,12 +15,13 @@
 -dontwarn org.jetbrains.kotlin.com.intellij.util.lang.**
 
 
-# Keep all ktfmt library classes and methods for Maven API, CLI, and unit test compatibility
--keep class org.jetbrains.ktfmt.** { *; }
-
 # IntelliJ platform classes required for Kotlin AST parsing & CoreApplicationEnvironment
 -keep class org.jetbrains.kotlin.com.intellij.**
 
-# Kotlin AST PSI and KDoc elements (require all constructors/methods for reflection AST instantiation)
--keep class org.jetbrains.kotlin.psi.** { *; }
--keep class org.jetbrains.kotlin.kdoc.** { *; }
+# Kotlin AST PSI and KDoc elements (keep constructors for reflective ASTFactory instantiation)
+-keepclassmembers class org.jetbrains.kotlin.psi.** {
+    public <init>(...);
+}
+-keepclassmembers class org.jetbrains.kotlin.kdoc.** {
+    public <init>(...);
+}