refactor(cli): move compressed source exclusion to Rust

The Rust source-file scheduler already owns the ordering around source
exclusion, but its suffix policy and diagnostic still depended on a C table
and helper.  That left the policy leaf on the C side of the boundary and
made the Rust scheduler call back into a C-owned decision.

Move the complete 113-entry, case-sensitive suffix policy into the Rust CLI
file-I/O layer and export the exclusion callback through the existing C ABI.
The callback preserves leading dots, the stdin and NULL non-match behavior,
the 0/1 return policy, and the exact display-level-4 diagnostic while leaving
C resource, compression, and asynchronous callbacks unchanged.  Focused
checks cover representative suffixes, case sensitivity, stdin/NULL handling,
and the display gate.

Test Plan:
- `cc -fsyntax-only -Iprograms -Ilib -Ilib/common programs/fileio.c` -- passed
- Exact extracted C/Rust suffix-list comparison -- passed; all 113 entries match
- `git diff --check` and `git diff --cached --check` -- passed
- Rust unit tests and Cargo/Make/native suites were not run per request
- `rustfmt +nightly --check --edition 2021 rust/src/fileio_prefs.rs` -- not clean
  because it reports pre-existing formatting drift in unchanged code

programs/fileio.c

@@ -1659,9 +1659,10 @@ typedef int (*FIO_rust_compress_src_compress_fn)(void* opaque,
 typedef void (*FIO_rust_compress_src_close_fn)(void* opaque);
 typedef void (*FIO_rust_compress_src_remove_fn)(void* opaque, const char* srcFileName);
 
-/* Rust owns the source policy; this projection exposes only scalar names and
- * opaque C callbacks.  FIO_ctx_t, cRess_t, stat_t, and all resource/diagnostic
- * state remain private to the callback context below. */
+/* Rust owns the source policy and exclusion diagnostic; this projection
+ * exposes only scalar names and opaque callbacks for C-owned operations.
+ * FIO_ctx_t, cRess_t, stat_t, and all resource state remain private to the
+ * callback context below. */
 typedef struct {
     void* opaque;
     const char* dstFileName;
@@ -1708,6 +1709,7 @@ typedef char FIO_rust_compress_src_projection_size[
           + 8 * sizeof(FIO_rust_compress_src_stat_fn)) ? 1 : -1];
 int FIO_rust_compressFilenameSrcFile(
         const FIO_rust_compress_src_projection_t* projection);
+int FIO_rust_compressSourceIsExcluded(void* opaque, const char* srcFileName);
 
 static void FIO_adjustParamsForPatchFromMode(FIO_prefs_t* const prefs,
                                     ZSTD_compressionParameters* comprParams,
@@ -3158,126 +3160,6 @@ static int FIO_compressFilename_dstFile(FIO_ctx_t* const fCtx,
     return FIO_rust_compressFilenameDstFile(&projection);
 }
 
-/* List used to compare file extensions (used with --exclude-compressed flag)
-* Different from the suffixList and should only apply to ZSTD compress operationResult
-*/
-static const char *compressedFileExtensions[] = {
-    ZSTD_EXTENSION,
-    TZSTD_EXTENSION,
-    GZ_EXTENSION,
-    TGZ_EXTENSION,
-    LZMA_EXTENSION,
-    XZ_EXTENSION,
-    TXZ_EXTENSION,
-    LZ4_EXTENSION,
-    TLZ4_EXTENSION,
-    ".7z",
-    ".aa3",
-    ".aac",
-    ".aar",
-    ".ace",
-    ".alac",
-    ".ape",
-    ".apk",
-    ".apng",
-    ".arc",
-    ".archive",
-    ".arj",
-    ".ark",
-    ".asf",
-    ".avi",
-    ".avif",
-    ".ba",
-    ".br",
-    ".bz2",
-    ".cab",
-    ".cdx",
-    ".chm",
-    ".cr2",
-    ".divx",
-    ".dmg",
-    ".dng",
-    ".docm",
-    ".docx",
-    ".dotm",
-    ".dotx",
-    ".dsft",
-    ".ear",
-    ".eftx",
-    ".emz",
-    ".eot",
-    ".epub",
-    ".f4v",
-    ".flac",
-    ".flv",
-    ".gho",
-    ".gif",
-    ".gifv",
-    ".gnp",
-    ".iso",
-    ".jar",
-    ".jpeg",
-    ".jpg",
-    ".jxl",
-    ".lz",
-    ".lzh",
-    ".m4a",
-    ".m4v",
-    ".mkv",
-    ".mov",
-    ".mp2",
-    ".mp3",
-    ".mp4",
-    ".mpa",
-    ".mpc",
-    ".mpe",
-    ".mpeg",
-    ".mpg",
-    ".mpl",
-    ".mpv",
-    ".msi",
-    ".odp",
-    ".ods",
-    ".odt",
-    ".ogg",
-    ".ogv",
-    ".otp",
-    ".ots",
-    ".ott",
-    ".pea",
-    ".png",
-    ".pptx",
-    ".qt",
-    ".rar",
-    ".s7z",
-    ".sfx",
-    ".sit",
-    ".sitx",
-    ".sqx",
-    ".svgz",
-    ".swf",
-    ".tbz2",
-    ".tib",
-    ".tlz",
-    ".vob",
-    ".war",
-    ".webm",
-    ".webp",
-    ".wma",
-    ".wmv",
-    ".woff",
-    ".woff2",
-    ".wvl",
-    ".xlsx",
-    ".xpi",
-    ".xps",
-    ".zip",
-    ".zipx",
-    ".zoo",
-    ".zpaq",
-    NULL
-};
-
 typedef struct {
     FIO_ctx_t* fCtx;
     FIO_prefs_t* prefs;
@@ -3311,15 +3193,6 @@ static int FIO_rust_compressSourceStat(void* opaque, const char* srcFileName)
     return FIO_RUST_COMPRESS_SRC_STAT_OK;
 }
 
-static int FIO_rust_compressSourceIsExcluded(void* opaque, const char* srcFileName)
-{
-    int const isCompressed = UTIL_isCompressedFile(srcFileName, compressedFileExtensions);
-    (void)opaque;
-    if (isCompressed)
-        DISPLAYLEVEL(4, "File is already compressed : %s \n", srcFileName);
-    return isCompressed;
-}
-
 static int FIO_rust_compressSourceOpen(void* opaque, const char* srcFileName,
                                        U64* fileSize)
 {