Merge remote-tracking branch 'origin/master' into gitea/feature/end

Resolved conflicts taking origin/master (v0.5.55) as canonical, with local
features re-applied:
- runtime log level (LOG_LEVEL env + dashboard Settings → Logging, applied
  immediately and persisted across restarts)
- free/noAuth provider enable/disable toggle via providerStrategies.enabled
- parallel model testing (Test All Models / Test Selected Keys)

open-sse/providers/models/schema.js

@@ -1,5 +1,14 @@
 import { deriveModelName } from "./namePatterns.js";
 
+// Normalize version separators in a model id: hyphen between two digits becomes a dot.
+// Registry ids use dots for versions ("claude-sonnet-4.5") but clients (CLIs, aliases)
+// often send them with dashes ("claude-sonnet-4-5"). Only digit-digit hyphens are
+// touched, so word/suffix hyphens stay intact ("-thinking", "-agentic", "qwen3-coder-next").
+export function normalizeModelId(modelId) {
+  if (typeof modelId !== "string") return modelId;
+  return modelId.replace(/(\d)-(\d)/g, "$1.$2");
+}
+
 // Model defaults centralized (was scattered as `m.kind || "llm"`, `quotaFamily || "normal"`, etc.)
 export const MODEL_DEFAULTS = {
   kind: "llm",
@@ -29,3 +38,11 @@ export function modelStrip(model) {
 export function modelTargetFormat(model) {
   return model?.targetFormat || MODEL_DEFAULTS.targetFormat;
 }
+
+// Per-model declared upstream formats (e.g. ["openai", "claude"]). Guards the
+// sourceFormat-matched transport for multi-endpoint providers whose models differ
+// in endpoint support (opencode-go: kimi/glm only do /chat/completions, minimax/qwen
+// also do /messages, deepseek also does /responses).
+export function modelSupportedFormats(model) {
+  return model?.supportedFormats || null;
+}