fix(stats): repair stale KOReader file identities

Recompute the open file digest and recover previously verified matches without guessing between duplicate files. Preserve stranded statistics across lifecycle retries and advertise plugin version 1.5.3 so installed devices can update.

Fixes #1497

koreader-plugin/bookorbit.koplugin/main.lua

@@ -48,7 +48,7 @@ local BookOrbitProgressSync = require("bookorbit_progress_sync")
 local BookOrbitSweep = require("bookorbit_sweep")
 local BookOrbitUpdater = require("bookorbit_updater")
 
-local PLUGIN_VERSION = "1.5.2"
+local PLUGIN_VERSION = "1.5.3"
 
 local SYNC_STRATEGY = {
     PROMPT = 1,
@@ -938,7 +938,8 @@ function BookOrbit:matchOpenBookForAutoSync(on_done)
         digests = { digest },
         files = { self.ui.document.file },
     })
-    local had_local_match = state:getBook(digest) ~= nil
+    local local_book = state:getBook(digest)
+    local had_local_match = local_book ~= nil
     -- Any local match used to end this path, with no freshness bound at all, so
     -- a book whose server-side file was deleted or re-imported could stay
     -- wrongly matched forever. The bound here is a correctness fix.
@@ -956,6 +957,7 @@ function BookOrbit:matchOpenBookForAutoSync(on_done)
             [digest] = {
                 title = titleFromFile(self.ui.document.file),
                 source = "current_file",
+                book_file_id = local_book and local_book.fileId or nil,
             },
         })
         if not body then