fix(cline,airforce): unwrap {success,data} envelope, add live catalog, and refresh airforce free models

Cline (api.cline.bot) wraps non-stream chat completions in
{"success":true,"data":{...choices...}}, which both the dashboard model-test
ping and the proxy non-stream path read at top level, producing "Provider
returned no completion choices for this model" (#3644). Unwrap the envelope
before usage extraction and response translation; the error envelope
({"success":false,...}) never matches and passes through untouched.

Scoped through `transport.quirks.clineEnvelope` so only cline/clinepass opt
in — no other provider's response body is ever rewritten.

Also adds a live Cline catalog: `fetchClineRawModels()` is shared between
`resolveClineModels()` (full catalog, including free-tier ids such as
z-ai/glm-5.3-flash) and `resolveClinepassModels()` (cline-pass/* only), wired
into /v1/models, the per-provider models route, and the combo selector's
model picker with the static catalog kept as fallback.

Refreshes the dead api-airforce free models (anthropic/claude-3.7-sonnet,
moonshot/kimi-k2.6, google/gemini-2.5-flash) with the live gpt-oss-120b,
gpt-oss-20b and kimi-k2.7-code, plus passthroughModels, forceStream and a
suggested-models filter.

open-sse/providers/registry/api-airforce.js

@@ -20,6 +20,8 @@ export default {
   authModes: [
     "apikey",
   ],
+  passthroughModels: true,
+  modelsFetcher: { url: "https://api.airforce/v1/models", type: "airforce-free" },
   transport: {
     baseUrl: "https://api.airforce/v1/chat/completions",
     validateUrl: "https://api.airforce/v1/models",
@@ -27,10 +29,11 @@ export default {
       "HTTP-Referer": "https://endpoint-proxy.local",
       "X-Title": "Endpoint Proxy",
     },
+    forceStream: true,
   },
   models: [
-    { id: "anthropic/claude-3.7-sonnet", name: "Claude 3.7 Sonnet (Free)", contextLength: 200000 },
-    { id: "moonshot/kimi-k2.6", name: "Kimi K2.6 (Free)", contextLength: 262144 },
-    { id: "google/gemini-2.5-flash", name: "Gemini 2.5 Flash (Free)", contextLength: 1048576 },
+    { id: "gpt-oss-120b", name: "GPT-OSS 120B (Free)", contextLength: 131072 },
+    { id: "gpt-oss-20b", name: "GPT-OSS 20B (Free)", contextLength: 131072 },
+    { id: "kimi-k2.7-code", name: "Kimi K2.7 Code (Free)", contextLength: 262144 },
   ],
 };