fix(client): resolve all gdlint warnings — zero warnings policy

Fix 354 gdlint warnings across 65 files: 194 class-definitions-order
(reorder declarations), 138 max-line-length (split long lines),
22 code issues (unused args, no-else-return, naming). Update .gdlintrc
to exclude addons/ and raise max-public-methods for test files.
No logic changes — declaration order, whitespace, and naming only.

Ticket: #783

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

client/tests/test_bug_report_ring_buffer.gd

@@ -11,12 +11,11 @@
 class_name TestBugReportRingBuffer
 extends GdUnitTestSuite
 
-
-var BugReportDialogScript = load("res://ui/bug_report_dialog.gd")
-
 # Expected ring buffer capacity per spec.
 const EXPECTED_CAPACITY := 60
 
+var BugReportDialogScript = load("res://ui/bug_report_dialog.gd")
+
 
 func after_each() -> void:
 	# Reset GameState fields mutated by tests to prevent cross-test leakage.