Refactor download/showtime crawling and probing

Restructure download and showtime crawling logic to improve cache checks, provider fallbacks and probing. Introduces CHECK_CACHE enhancements (returns mp4/mkv lists, failed servers and internal 720p flag) and centralizes crawl orchestration with CRAWL_VID_VAULT and CRAWL_SHOWTIME_PORTAL returning unified results. construct_downloadable_list refactored to support ffmpeg v2 probe workflow, ping modes (1-by-1 or parallel), improved subtitle handling/formatting, dynamic file size handling, and delivery endpoint probing. Proxima/sub-router changes add robust upstream retry/fallback, content-type and content-length fixes, subtitle conversion adjustments, and various header/proxy handling improvements. Minor type updates in generic.ts and showtime-v2 cache-check condition fix. Adds two sample static files. Overall changes aim to make provider selection, probing and download URL construction more resilient and maintainable.

src/sub-router/ffmpeg/v2.ts

@@ -91,6 +91,8 @@ const sub_router = new Elysia({ prefix: "/ffmpeg/v2" }).post(
       })
     });
 
+    console.error("\n", E_, "\n");
+
     if (E_) {
       throw E_;
     }

src/sub-router/ffmpeg/validator-v2.ts

@@ -23,7 +23,7 @@ const playback = t.Object(
     }),
     picture_quality: t.Optional(
       t.String({
-        minLength: 1,
+        minLength: 0,
         errorMessage: "Invalid picture quality"
       })
     )
@@ -37,7 +37,7 @@ const live = t.Object(
   {
     sbe_id: t.Optional(
       t.String({
-        minLength: 1,
+        minLength: 0,
         errorMessage: "Invalid sbe id"
       })
     ),
@@ -52,7 +52,7 @@ const live = t.Object(
     ),
     delivery_name: t.Optional(
       t.String({
-        minLength: 1,
+        minLength: 0,
         errorMessage: "Invalid delivery name"
       })
     ),
@@ -72,7 +72,7 @@ const live = t.Object(
     ),
     progress_update_endpoint: t.Optional(
       t.String({
-        minLength: 1,
+        minLength: 0,
         errorMessage: "Invalid progress update endpoint"
       })
     )