refactor: standardize hack filenames to [Hack] and flatten to platform root

Switch the library naming convention from "Pokemon - <Name> (Hack)" to
"Pokemon - <Name> [Hack][version][tags]", and place hacks in the platform
root (roms/<plat>/) instead of a Hacks/ subfolder. Applied across the live
valhalla library (272 hack/fan-game files) via scripts/standardize-names.py.

- romhack-import.py / romhack-fetch.py: emit [Hack], write to roms/<plat>/
- romhack-pc-migrate.py: emit [Hack]
- build-romhack-vault.py (archived): update documented library_path
- standardize-names.py: new one-shot, self-fetching standardizer (idempotent;
  pipes \n-only bytes over SSH to avoid Windows CRLF corrupting filenames)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/romhack-import.py

@@ -2,12 +2,12 @@
 """Import a drop-folder of mixed Pokémon hack files into the valhalla library.
 
 Handles a folder containing any mix of:
-  - completed ROMs (.gba/.gbc/.gb/.nds)  -> validated, clean-named, copied to roms/<plat>/Hacks/
-  - patches (.ips/.bps/.ups/.xdelta)     -> applied to an owned base, placed in Hacks/, archived
+  - completed ROMs (.gba/.gbc/.gb/.nds)  -> validated, clean-named, copied to roms/<plat>/
+  - patches (.ips/.bps/.ups/.xdelta)     -> applied to an owned base, placed in roms/<plat>/, archived
   - documentation (.pdf/.txt/.png/.md)   -> archived under PATCHES/_docs/
   - archives (.zip/.rar/.7z)             -> extracted and recursed (same rules), source kept
 
-Naming matches the rest of the library:  "Pokemon - <Hack> (Hack).<ext>"
+Naming matches the rest of the library:  "Pokemon - <Hack> [Hack].<ext>"
 (version/junk parentheticals are stripped from the source filename).
 
 Base ROM for a patch is auto-detected: BPS/UPS embed source CRC32 so the correct
@@ -89,7 +89,7 @@ NAME_OVERRIDES = [
 ]
 # Files we will NOT auto-place (unidentified / need user to name). Reported instead.
 SKIP_NAME_SUBSTR = ["beta 15 + expansion"]
-# Known base ROMs in a drop folder — place under roms/<plat>/, not Hacks/
+# Known base ROMs in a drop folder — placed under roms/<plat>/ (un-tagged, no [Hack])
 BASE_ROM_FILES = [
     ("fire red (j)", "gba", "Pokemon - Fire Red (J) (V1.0).gba"),
 ]
@@ -205,7 +205,7 @@ def place_rom(src, plat, hackname, origin):
     if is_skip_name(origin):
         report.append(("ROM", "NEEDS-ID", origin, "unidentified hack — tell me the name", ""))
         return
-    out_name = f"Pokemon - {hackname} (Hack).{plat}"
+    out_name = f"Pokemon - {hackname} [Hack].{plat}"
     err, padto = validate(src, plat)
     if err:
         report.append(("ROM", "FAIL", origin, err, "")); return
@@ -213,11 +213,11 @@ def place_rom(src, plat, hackname, origin):
     if padto and len(data) < padto:
         data += b"\xff" * (padto - len(data))
     if PLACE:
-        d = os.path.join(ROMS, plat, "Hacks"); os.makedirs(d, exist_ok=True)
+        d = os.path.join(ROMS, plat); os.makedirs(d, exist_ok=True)
         with open(os.path.join(d, out_name), "wb") as f:
             f.write(data)
     report.append(("ROM", "OK", origin, f"{len(data):,}b crc={zlib.crc32(data)&0xffffffff:08x}",
-                   f"{plat}/Hacks/{out_name}"))
+                   f"{plat}/{out_name}"))
 
 
 def try_apply(patch, base_key, out):
@@ -314,8 +314,8 @@ def process_file(path, origin=None):
 
 def place_pc_archive(path, hackname, origin, variant=None):
     tag = variant or detect_variant(path) or ""
-    suffix = f" {tag}" if tag else ""
-    out_name = f"Pokemon - {hackname} (Hack){suffix}.zip"
+    suffix = tag if tag else ""
+    out_name = f"Pokemon - {hackname} [Hack]{suffix}.zip"
     dest_dir = pc_dest_dir(tag)
     dest = os.path.join(dest_dir, out_name)
     ext = os.path.splitext(path)[1].lower()
@@ -352,7 +352,7 @@ def place_pc_archive(path, hackname, origin, variant=None):
 def place_pc_installer(path, hackname, origin):
     """Wrap a standalone .exe installer in a zip so RomM can serve it."""
     tag = detect_variant(path) or "[Installer]"
-    out_name = f"Pokemon - {hackname} (Hack) {tag}.zip"
+    out_name = f"Pokemon - {hackname} [Hack]{tag}.zip"
     dest_dir = pc_dest_dir(tag)
     dest = os.path.join(dest_dir, out_name)
     tmp_zip = dest + ".part"