fix(compiler): adjust text length validation and file search logic

- Change text length validation to include length 3 in LocalSearchInsCommand.
- Add case sensitivity option to Project.findFile method.
- Update FileInsCommand to use case-insensitive file search.

Author: phodal

exts/devins-lang/src/main/kotlin/cc/unitmesh/devti/language/compiler/exec/FileInsCommand.kt

@@ -32,7 +32,7 @@ class FileInsCommand(private val myProject: Project, private val prop: String) :
 
         if (virtualFile == null) {
             val filename = filepath.split("/").last()
-            virtualFile = myProject.findFile(filename)
+            virtualFile = myProject.findFile(filename, false)
         }
 
         val contentsToByteArray = virtualFile?.contentsToByteArray()

exts/devins-lang/src/main/kotlin/cc/unitmesh/devti/language/compiler/exec/LocalSearchInsCommand.kt

@@ -31,7 +31,7 @@ class LocalSearchInsCommand(val myProject: Project, private val scope: String, v
     override suspend fun execute(): String {
         val text = (text ?: scope).trim()
         /// check text length if less then 3 return alert slowly
-        if (text.length < 3) {
+        if (text.length <= 3) {
             throw IllegalArgumentException("Text length should be more than 4")
         }
 

exts/devins-lang/src/main/kotlin/cc/unitmesh/devti/language/utils/ProjectFileUtil.kt

@@ -15,11 +15,13 @@ fun Project.lookupFile(path: String): VirtualFile? {
     return VirtualFileManager.getInstance().findFileByUrl("file://${realpath?.toAbsolutePath()}")
 }
 
-fun Project.findFile(filename: String): VirtualFile? {
+fun Project.findFile(filename: String, caseSensitively: Boolean = true): VirtualFile? {
     ApplicationManager.getApplication().assertReadAccessAllowed()
-    return FilenameIndex.getVirtualFilesByName(filename, ProjectScope.getProjectScope(this)).firstOrNull()
+    return FilenameIndex.getVirtualFilesByName(filename, caseSensitively, ProjectScope.getProjectScope(this)).firstOrNull()
 }
 
+// getVirtualFilesByNamesIgnoringCase
+
 fun VirtualFile.canBeAdded(): Boolean {
     if (!this.isValid || this.isDirectory) return false
     if (this.fileType.isBinary || FileUtilRt.isTooLarge(this.length)) return false