feat: update backend OCR parser, web app, mobile app camera/preview UI, tests, and documentation with sample images

backend/pfm-web-app/src/utils/active-log.ts

@@ -15,37 +15,65 @@ export interface ActiveUploadLog {
   frontend_response?: any;
 }
 
-// Store active log in global context to persist across Next.js hot-reloads
+// Store active logs in global context as a Map keyed by filename
+// This supports concurrent uploads without race conditions
 const globalForActiveLog = global as unknown as {
-  activeLog: ActiveUploadLog | null;
+  activeLogs: Map<string, ActiveUploadLog>;
 };
 
+// Initialise the map once (survives Next.js hot-reloads on the same process)
+if (!globalForActiveLog.activeLogs) {
+  globalForActiveLog.activeLogs = new Map();
+}
+
 export function startActiveLog(filename: string) {
-  globalForActiveLog.activeLog = {
+  globalForActiveLog.activeLogs.set(filename, {
     filename,
     vllm_calls: []
-  };
+  });
   console.log(`[ActiveLog] Started tracking log for ${filename}`);
 }
 
-export function logVllmCall(request: any, response: any) {
-  if (globalForActiveLog.activeLog) {
-    globalForActiveLog.activeLog.vllm_calls.push({
+export function logVllmCall(filename: string, request: any, response: any) {
+  const log = globalForActiveLog.activeLogs.get(filename);
+  if (log) {
+    log.vllm_calls.push({
       request,
       response,
       timestamp: new Date().toISOString()
     });
-    console.log(`[ActiveLog] Logged vLLM call for ${globalForActiveLog.activeLog.filename} (total calls: ${globalForActiveLog.activeLog.vllm_calls.length})`);
+    console.log(`[ActiveLog] Logged vLLM call for ${filename} (total calls: ${log.vllm_calls.length})`);
   } else {
-    console.log("[ActiveLog] Warning: Attempted to log vLLM call but no active log session is running.");
+    console.log(`[ActiveLog] Warning: Attempted to log vLLM call for "${filename}" but no active log session is running.`);
   }
 }
 
-export function getActiveLog(): ActiveUploadLog | null {
-  return globalForActiveLog.activeLog;
+export function getActiveLog(filename: string): ActiveUploadLog | null {
+  return globalForActiveLog.activeLogs.get(filename) || null;
 }
 
-export function clearActiveLog() {
-  globalForActiveLog.activeLog = null;
-  console.log("[ActiveLog] Cleared active log tracking context");
+export function clearActiveLog(filename: string) {
+  globalForActiveLog.activeLogs.delete(filename);
+  console.log(`[ActiveLog] Cleared active log tracking context for ${filename}`);
+}
+
+/**
+ * Log a vLLM call to ALL currently active upload sessions.
+ * Used by the vllm-proxy, which doesn't have per-upload filename context,
+ * since the pipeline-api processes exactly one upload at a time.
+ */
+export function logVllmCallToAll(request: any, response: any) {
+  const sessions = globalForActiveLog.activeLogs;
+  if (sessions.size === 0) {
+    console.log("[ActiveLog] Warning: Attempted to log vLLM call but no active log session is running.");
+    return;
+  }
+  for (const [filename, log] of sessions) {
+    log.vllm_calls.push({
+      request,
+      response,
+      timestamp: new Date().toISOString()
+    });
+    console.log(`[ActiveLog] Logged vLLM call for ${filename} (total calls: ${log.vllm_calls.length})`);
+  }
 }