Refactor preset handling and improve database snapshot logic

src/lib/UI/Realm/RealmFrame.svelte

@@ -61,7 +61,7 @@
         if($ShowRealmFrameStore.startsWith('preset')){
             const predata = await downloadPreset(Number($ShowRealmFrameStore.split(':')[1]), 'return')
             const encodedPredata = predata.buf
-            const encodedPredataName = new TextEncoder().encode(predata.data.name + '.risupreset')
+            const encodedPredataName = new TextEncoder().encode(predata.data.name + '.risup')
             data = {
                 data: encodedPredata.buffer,
                 name: encodedPredataName.buffer

src/ts/globalApi.svelte.ts

@@ -345,18 +345,14 @@ export async function saveDb(){
         })
 
         $effect(() => {
-            let newSaveHash = ''
-            newSaveHash += JSON.stringify(DBState?.db?.characters?.[selIdState])
+            $state.snapshot(DBState?.db?.characters?.[selIdState])
             for(const key in DBState.db){
                 if(key !== 'characters'){
-                    newSaveHash += (DBState.db[key])
+                    $state.snapshot(DBState.db[key])
                 }
             }
 
-            if(newSaveHash !== oldSaveHash){
-                changed = true
-                oldSaveHash = newSaveHash
-            }
+            changed = true
         })
     })
 

src/ts/process/stableDiff.ts

@@ -455,6 +455,10 @@ export async function generateAIImage(genPrompt:string, currentChar:character, n
                             input = input.replaceAll('{{risu_prompt}}', genPrompt) 
                             input = input.replaceAll('{{risu_neg}}', neg)
                         }
+
+                        if(inputKeys[j] === 'seed' && typeof input === 'number'){
+                            input = Math.floor(Math.random() * 1000000000)
+                        }
                         
                         node.inputs[inputKeys[j]] = input
                     }

src/ts/storage/database.svelte.ts

@@ -1625,15 +1625,16 @@ export async function downloadPreset(id:number, type:'json'|'risupreset'|'return
                 'risupreset'
             )
         }))
-        
+
+        const buf2 = await encodeRPack(buf)
+
         if(type === 'risupreset'){
-            const buf2 = await encodeRPack(buf)
             downloadFile(pres.name + "_preset.risup", buf2)
         }
         else{
             return {
                 data: pres,
-                buf
+                buf: buf2
             }
         }