refactor: extract raw pattern retrieval into dedicated GetRaw method`

- Add `GetRaw` method to `PatternsEntity` for unprocessed pattern retrieval
- Replace inline raw pattern loading logic in server handler with `GetRaw`
- Remove manual `Pattern` struct construction from `PatternsHandler.Get`
- Simplify server handler by delegating storage access to database layer
- Add test coverage for `GetRaw` with custom patterns directory

internal/plugins/db/fsdb/patterns.go

@@ -50,6 +50,11 @@ func (o *PatternsEntity) GetWithoutVariables(source, input string) (pattern *Pat
 	return
 }
 
+// GetRaw returns a pattern from storage without applying variable processing.
+func (o *PatternsEntity) GetRaw(name string) (*Pattern, error) {
+	return o.getFromDB(name)
+}
+
 func (o *PatternsEntity) loadPattern(source string) (pattern *Pattern, err error) {
 	// Determine if this is a file path
 	isFilePath := strings.HasPrefix(source, "\\") ||

internal/plugins/db/fsdb/patterns_test.go

@@ -256,6 +256,11 @@ func TestPatternsEntity_CustomPatterns(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, "Main pattern content", pattern.Pattern)
 
+	// Test GetRaw also respects custom patterns directory
+	rawPattern, err := entity.GetRaw("shared-pattern")
+	require.NoError(t, err)
+	assert.Equal(t, "Custom shared pattern", rawPattern.Pattern)
+
 	// Test that custom pattern is accessible
 	pattern, err = entity.getFromDB("custom-pattern")
 	require.NoError(t, err)

internal/server/patterns.go

@@ -46,19 +46,11 @@ func NewPatternsHandler(r *gin.Engine, patterns *fsdb.PatternsEntity) (ret *Patt
 func (h *PatternsHandler) Get(c *gin.Context) {
 	name := c.Param("name")
 
-	// Get the raw pattern content without any variable processing
-	content, err := h.patterns.Load(name + "/" + h.patterns.SystemPatternFile)
+	pattern, err := h.patterns.GetRaw(name)
 	if err != nil {
 		c.JSON(http.StatusInternalServerError, err.Error())
 		return
 	}
-
-	// Return raw pattern in the same format as the processed patterns
-	pattern := &fsdb.Pattern{
-		Name:        name,
-		Description: "",
-		Pattern:     string(content),
-	}
 	c.JSON(http.StatusOK, pattern)
 }