docs(operations): document JSON format support for quests, scenarios, rengoku

All three file types now accept .json as a human-readable alternative
to .bin. Document the priority (.bin first), what each JSON format
covers, and update the bin/ directory tree to reflect both extensions.

Server-Operations.md

@@ -6,19 +6,29 @@ The `bin/` directory (configured via `BinPath` in config.json) holds game data f
 
 ```
 bin/
-├── quests/              # Quest binary files
-├── scenarios/           # Cutscene/scenario files
+├── quests/              # Quest files (.bin or .json)
+├── scenarios/           # Scenario files (.bin or .json)
 ├── events/              # Organized quest archives (not read by server)
-├── rengoku_data.bin     # Rengoku survival mode config
+├── rengoku_data.bin     # Hunting Road config (.bin or .json)
 └── save_override.bin    # Optional: forces savedata values on character creation
 ```
 
+### JSON Format Support
+
+All three file types support a human-readable `.json` alternative. The server always tries `.bin` first and falls back to `.json` automatically — existing binary files work unchanged.
+
+**Quest** (`bin/quests/<name>.json`): covers all binary sections — quest text (UTF-8, converted to Shift-JIS on the wire), objectives, monster spawns, reward tables, supply box, stages, map sections, gathering points, and more. Use `ParseQuestBinary` to convert an existing `.bin` to JSON.
+
+**Scenario** (`bin/scenarios/<name>.json`): supports sub-header chunks with UTF-8 strings (flags 0x01/0x02), inline episode listings (flag 0x08), and opaque base64 blobs for JKR-compressed chunks (flags 0x10/0x20). See `docs/scenario-format.md` in the Erupe repository for the full format reference.
+
+**Hunting Road** (`bin/rengoku_data.json`): define multi-road and solo-road floors, spawn tables, and monster IDs in plain JSON. The server assembles and ECD-encrypts the binary at startup.
+
 ### Quest File Naming
 
 Files in `quests/` follow this pattern:
 
 ```
-[questID][time][season].bin
+[questID][time][season].bin   (or .json)
 ```
 
 - **questID**: 5-digit hex ID (e.g., `23045`)
@@ -34,7 +44,7 @@ If `SeasonOverride` is enabled in the config, the server converts quest filename
 Files in `scenarios/` follow this pattern:
 
 ```
-[CategoryID]_0_0_0_S[MainID]_T[Flags]_C[ChapterID].bin
+[CategoryID]_0_0_0_S[MainID]_T[Flags]_C[ChapterID].bin   (or .json)
 ```
 
 Missing scenario files will crash the client — make sure all referenced scenarios have corresponding files.