Removes voided/flagged entry flags

Updates journal entry flags to align with Beancount's limited flag support.
Beancount only uses cleared (*) and pending (!) flags.

Removes the VOID and FLAGGED flags and recommends using tags instead
(e.g., "! + #voided" for voided entries, "! + #review" for flagged entries).

Updates the API to reflect this change, removing the ability to directly
"reject" an expense entry via the void flag.  Instead, instructs users to
add the #voided tag in Fava.

Updates reconciliation summary to count entries with voided/review tags
instead of voided/flagged flags.

models.py

@@ -15,11 +15,18 @@ class AccountType(str, Enum):
 
 
 class JournalEntryFlag(str, Enum):
-    """Transaction status flags (Beancount-style)"""
+    """Transaction status flags (Beancount-compatible)
+
+    Beancount only supports two user-facing flags:
+    - * (CLEARED): Completed transactions
+    - ! (PENDING): Transactions needing attention
+
+    For voided/flagged transactions, use tags instead:
+    - Voided: Use "!" flag + #voided tag
+    - Flagged: Use "!" flag + #review tag
+    """
     CLEARED = "*"      # Fully reconciled/confirmed
     PENDING = "!"      # Not yet confirmed/awaiting approval
-    FLAGGED = "#"      # Needs review/attention
-    VOID = "x"         # Voided/cancelled entry
 
 
 class Account(BaseModel):

views_api.py

@@ -1924,19 +1924,14 @@ async def api_reject_expense_entry(
             detail=f"Entry is not pending (current status: {entry.flag.value})",
         )
 
-    # Update flag to voided
-    await db.execute(
-        """
-        UPDATE journal_entries
-        SET flag = :flag
-        WHERE id = :id
-        """,
-        {"flag": JournalEntryFlag.VOID.value, "id": entry_id}
+    # Since entries are now in Fava/Beancount, voiding requires editing the Beancount file
+    # Beancount doesn't have a "void" flag - recommend using ! flag + #voided tag
+    raise HTTPException(
+        status_code=HTTPStatus.NOT_IMPLEMENTED,
+        detail="To reject/void entry, open Fava and either delete the transaction or add the #voided tag. "
+               "Beancount only supports * (cleared) and ! (pending) flags."
     )
 
-    # Return updated entry
-    return await get_journal_entry(entry_id)
-
 
 # ===== BALANCE ASSERTION ENDPOINTS =====
 
@@ -2136,11 +2131,13 @@ async def api_get_reconciliation_summary(
     fava = get_fava_client()
     all_entries = await fava.query_transactions(limit=1000, include_pending=True)
 
-    # Count entries by flag
+    # Count entries by flag (Beancount only supports * and !)
     cleared = len([e for e in all_entries if e.get("flag") == "*"])
     pending_entries = len([e for e in all_entries if e.get("flag") == "!"])
-    flagged = len([e for e in all_entries if e.get("flag") == "#"])
-    voided = len([e for e in all_entries if e.get("flag") == "x"])
+
+    # Count entries with special tags
+    voided = len([e for e in all_entries if "voided" in e.get("tags", [])])
+    flagged = len([e for e in all_entries if "review" in e.get("tags", []) or "flagged" in e.get("tags", [])])
 
     # Get all accounts
     accounts = await get_all_accounts()