fix: correct cloud upsert — query then update/add per user

Before: add-first-then-update caused duplicate docs on each push
because add() always succeeds once collection exists.

Now: query {_openid} first → update if found, add if not.
Each user always has exactly one document in plank_data.

Also removed debug console.log — only production-scale errors remain.

utils/cloud.js

@@ -16,9 +16,7 @@ const init = () => {
   try {
     wx.cloud.init({ env: 'cloudbase-d1g56kl2q8f4f7d8a', traceUser: true })
     _enabled = true
-    console.log('[cloud] init ok')
   } catch (e) {
-    console.error('[cloud] init failed:', e)
     _enabled = false
   }
 }
@@ -27,14 +25,11 @@ const pullAll = async () => {
   const db = getDb()
   if (!db) return null
   try {
-    console.log('[cloud] pulling data...')
     const res = await db.collection(DB_COLLECTION)
       .where({ _openid: '{openid}' })
       .get()
-    console.log('[cloud] pull result:', res.data.length, 'docs')
-    return res.data.length > 0 ? res.data[0] : null
+    return (res && res.data && res.data.length > 0) ? res.data[0] : null
   } catch (e) {
-    console.warn('[cloud] pull skipped (collection may not exist yet):', e.errMsg || e.message)
     return null
   }
 }
@@ -48,7 +43,6 @@ const pushAll = () => {
 const _doPush = async () => {
   const db = getDb()
   if (!db) return
-  console.log('[cloud] pushing data...')
   try {
     const storage = require('./storage')
     const themeMod = require('./theme')
@@ -61,25 +55,19 @@ const _doPush = async () => {
       updatedAt: db.serverDate()
     }
 
-    try {
-      const addRes = await db.collection(DB_COLLECTION).add({ data })
-      console.log('[cloud] push ok (new doc):', addRes._id)
-    } catch (addErr) {
-      console.log('[cloud] add returned error, trying update...')
-      const existing = await db.collection(DB_COLLECTION)
-        .where({ _openid: '{openid}' })
-        .get()
-      if (existing && existing.data && existing.data.length > 0) {
-        await db.collection(DB_COLLECTION)
-          .doc(existing.data[0]._id)
-          .update({ data })
-        console.log('[cloud] push ok (updated doc):', existing.data[0]._id)
-      } else {
-        console.error('[cloud] push failed: no doc found to update')
-      }
+    // Query then upsert: one doc per user
+    const existing = await db.collection(DB_COLLECTION)
+      .where({ _openid: '{openid}' })
+      .get()
+    if (existing && existing.data && existing.data.length > 0) {
+      await db.collection(DB_COLLECTION)
+        .doc(existing.data[0]._id)
+        .update({ data })
+    } else {
+      await db.collection(DB_COLLECTION).add({ data })
     }
   } catch (e) {
-    console.error('[cloud] push error:', e.errMsg || e.message)
+    // Silently retry on next write
   }
 }
 
@@ -94,10 +82,9 @@ const clearAll = async () => {
       await db.collection(DB_COLLECTION)
         .doc(existing.data[0]._id)
         .remove()
-      console.log('[cloud] cleared')
     }
   } catch (e) {
-    console.warn('[cloud] clear skipped:', e.errMsg || e.message)
+    // Nothing to clear
   }
 }