feat(sync): already_imported tracking, invoice cache, path fixes, remove vfp

- Track already_imported/new_imported counts separately in sync_runs
  and surface them in status API + dashboard last-run card
- Cache invoice data in SQLite orders table (factura_* columns);
  dashboard falls back to Oracle only for uncached imported orders
- Resolve JSON_OUTPUT_DIR and SQLITE_DB_PATH relative to known
  anchored roots in config.py, independent of CWD (fixes WSL2 start)
- Use single Oracle connection for entire validation phase (perf)
- Batch upsert web_products instead of one-by-one
- Remove stale VFP scripts (replaced by gomag-vending.prg workflow)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/app/config.py

@@ -1,9 +1,12 @@
 from pydantic_settings import BaseSettings
+from pydantic import model_validator
 from pathlib import Path
 import os
 
-# Resolve .env relative to this file (api/app/config.py → api/.env)
-_env_path = Path(__file__).resolve().parent.parent / ".env"
+# Anchored paths - independent of CWD
+_api_root = Path(__file__).resolve().parent.parent       # .../gomag/api/
+_project_root = _api_root.parent                         # .../gomag/
+_env_path = _api_root / ".env"
 
 class Settings(BaseSettings):
     # Oracle
@@ -15,12 +18,12 @@ class Settings(BaseSettings):
     TNS_ADMIN: str = ""
 
     # SQLite
-    SQLITE_DB_PATH: str = str(Path(__file__).parent.parent / "data" / "import.db")
+    SQLITE_DB_PATH: str = "data/import.db"
 
     # App
     APP_PORT: int = 5003
     LOG_LEVEL: str = "INFO"
-    JSON_OUTPUT_DIR: str = ""
+    JSON_OUTPUT_DIR: str = "output"
 
     # SMTP (optional)
     SMTP_HOST: str = ""
@@ -38,6 +41,17 @@ class Settings(BaseSettings):
     ID_GESTIUNE: int = 0
     ID_SECTIE: int = 0
 
+    @model_validator(mode="after")
+    def resolve_paths(self):
+        """Resolve relative paths against known roots, independent of CWD."""
+        # SQLITE_DB_PATH: relative to api/ root
+        if self.SQLITE_DB_PATH and not os.path.isabs(self.SQLITE_DB_PATH):
+            self.SQLITE_DB_PATH = str(_api_root / self.SQLITE_DB_PATH)
+        # JSON_OUTPUT_DIR: relative to project root
+        if self.JSON_OUTPUT_DIR and not os.path.isabs(self.JSON_OUTPUT_DIR):
+            self.JSON_OUTPUT_DIR = str(_project_root / self.JSON_OUTPUT_DIR)
+        return self
+
     model_config = {"env_file": str(_env_path), "env_file_encoding": "utf-8", "extra": "ignore"}
 
 settings = Settings()