Add systems for local world persistence (#553)

* chore: Change vscode workspace settings to work with omnisharp

* refactor(.NET): Use connection string builder to init sqlite database

* docs(.NET): Add method documentation to most things that matter

* docs(.NET): Add more docs I forgot to commit apparently

* feat: Add PoC world database structure ^& http listener

* fix: Send a response if VRCX isn't initialized rather than hanging

* feat: Initialize world db schema on startup

* feat: Allow worlds to store data in db through logfile

* use existing current location for worldDB

* Add tooltips

* chore: Make it so vscode can format C# files without prettier

* refactor: Add sqlite-net to (eventually) replace sqlite impl

* refactor: Make use of sqlite-net for world database

* docs: Add todo for fixing some random exception

* refactor: Remove now-unused SQLiteWorld

* refactor: Fix DB init query and change table structure again

* refactor: Add WorldDataRequest, add attributes for camelcase json keys

* Support current user location from API in addition to gameLog

* Change current location check for worldDB

* feat: Take store requests in JSON, identify worlds by GUID on store.

* refactor: Remove unused worldId param from connection key generator

* docs: Add more documentation to the methods for the world database

* fix: Hey wait that's not a primary key

* feat: Add a 10MB data cap for worlds shared across all of their rows.

* fix: Don't calculate size of world date twice when inserting

* refactor: Discard the guid variable since we only check for validity

* docs: Add docs/comments for new data cap functionality

* feat: Implement /getbulk API endpoint

* fix: Correct WorldDB init query typo

* fix: Update data entries properly instead of using 'OR REPLACE'

* refactor: Move endpoint processing to separate methods

* refactor: Add another check for error 503, remove old code

* feat: Add debug capability to /vrcx/getbulk

* fix: Correct the usage of getUser in actuallyGetCurrentLocation

* feat: Add store errors, implement external reading, stop 404ing

* docs: Add docs for new world db funcs

* refactor: Change world db server listen port to 22500

* fix: Use getUser correctly, dumb dumb

* fix: This error set shouldn't be here

* feat: Future-proof api endpoints. Add /status endpoint

---------

Co-authored-by: Natsumi <cmcooper123@hotmail.com>

AssetBundleCacher.cs

@@ -59,6 +59,12 @@ namespace VRCX
             return AppApi.Instance.GetVRChatCacheLocation();
         }
 
+        /// <summary>
+        /// Gets the full location of the VRChat cache for a specific asset bundle.
+        /// </summary>
+        /// <param name="id">The ID of the asset bundle.</param>
+        /// <param name="version">The version of the asset bundle.</param>
+        /// <returns>The full location of the VRChat cache for the specified asset bundle.</returns>
         public string GetVRChatCacheFullLocation(string id, int version)
         {
             var cachePath = GetVRChatCacheLocation();
@@ -67,6 +73,12 @@ namespace VRCX
             return Path.Combine(cachePath, idHash, versionLocation);
         }
 
+        /// <summary>
+        /// Checks the VRChat cache for a specific asset bundle.
+        /// </summary>
+        /// <param name="id">The ID of the asset bundle.</param>
+        /// <param name="version">The version of the asset bundle.</param>
+        /// <returns>An array containing the file size and lock status of the asset bundle.</returns>
         public long[] CheckVRChatCache(string id, int version)
         {
             long FileSize = -1;
@@ -155,6 +167,11 @@ namespace VRCX
             DownloadProgress = -16;
         }
 
+        /// <summary>
+        /// Deletes the cache directory for a specific asset bundle.
+        /// </summary>
+        /// <param name="id">The ID of the asset bundle to delete.</param>
+        /// <param name="version">The version of the asset bundle to delete.</param>
         public void DeleteCache(string id, int version)
         {
             var FullLocation = GetVRChatCacheFullLocation(id, version);
@@ -162,6 +179,9 @@ namespace VRCX
                 Directory.Delete(FullLocation, true);
         }
 
+        /// <summary>
+        /// Deletes the entire VRChat cache directory.
+        /// </summary>
         public void DeleteAllCache()
         {
             var cachePath = GetVRChatCacheLocation();
@@ -172,6 +192,9 @@ namespace VRCX
             }
         }
 
+        /// <summary>
+        /// Removes empty directories from the VRChat cache directory and deletes old versions of cached asset bundles.
+        /// </summary>
         public void SweepCache()
         {
             var cachePath = GetVRChatCacheLocation();
@@ -201,6 +224,10 @@ namespace VRCX
             }
         }
 
+        /// <summary>
+        /// Returns the size of the VRChat cache directory in bytes.
+        /// </summary>
+        /// <returns>The size of the VRChat cache directory in bytes.</returns>
         public long GetCacheSize()
         {
             var cachePath = GetVRChatCacheLocation();
@@ -214,6 +241,12 @@ namespace VRCX
             }
         }
 
+
+        /// <summary>
+        /// Recursively calculates the size of a directory and all its subdirectories.
+        /// </summary>
+        /// <param name="d">The directory to calculate the size of.</param>
+        /// <returns>The size of the directory and all its subdirectories in bytes.</returns>
         public long DirSize(DirectoryInfo d)
         {
             long size = 0;