Improve document processing pipeline and agent workflows

- Add delete_document_chunks for reprocessing, save extracted text to disk
- Expand case directory structure (original/extracted/proofread/backup)
- Update classifier patterns (תגובה, הודעת עמדה)
- Fix proofreader agent paths for new directory layout
- Update HEARTBEAT to notify on every task completion
- Improve bidi_table with LRE/PDF directional embedding
- Add Paperclip project verification and auto-close setup issue
- Add auto-sync-cases.sh for Gitea synchronization

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/bidi_table.py

@@ -1,8 +1,8 @@
 #!/usr/bin/env python3
 """BiDi-safe box-drawing table renderer for mixed Hebrew/English terminal output.
 
-Uses LRM (Left-to-Right Mark, U+200E) before box-drawing characters to prevent
-the BiDi algorithm from breaking table alignment when Hebrew text is present.
+Uses Unicode directional marks to prevent the BiDi algorithm from breaking
+table alignment when Hebrew text is present.
 
 Usage as module:
     from scripts.bidi_table import bidi_table
@@ -14,14 +14,25 @@ Usage from CLI:
 
 from __future__ import annotations
 
-LRM = "\u200E"  # Left-to-Right Mark — invisible, prevents BiDi reordering
+import re
+
+LRM = "\u200E"  # Left-to-Right Mark
+RLM = "\u200F"  # Right-to-Left Mark
+LRE = "\u202A"  # Left-to-Right Embedding
+PDF = "\u202C"  # Pop Directional Formatting
+
+_HEB_RE = re.compile(r'[\u0590-\u05FF]')
+
+
+def _has_hebrew(text: str) -> bool:
+    return bool(_HEB_RE.search(text))
 
 
 def bidi_table(headers: list[str], rows: list[list[str]]) -> str:
     """Render a box-drawing table safe for mixed RTL/LTR terminal display."""
     ncols = len(headers)
 
-    # Calculate column widths
+    # Calculate column widths (visual length, not counting bidi marks)
     col_widths = [len(h) for h in headers]
     for row in rows:
         for i, cell in enumerate(row[:ncols]):
@@ -35,8 +46,10 @@ def bidi_table(headers: list[str], rows: list[list[str]]) -> str:
         for i in range(ncols):
             cell = cells[i] if i < len(cells) else ""
             padded = cell + " " * max(0, col_widths[i] - len(cell))
-            parts.append(" " + padded + " ")
-        return LRM + "│" + (LRM + "│").join(parts) + LRM + "│"
+            # Wrap each cell: LRE forces left-to-right context for the cell,
+            # so box-drawing chars stay in place. PDF closes the embedding.
+            parts.append(LRE + " " + padded + " " + PDF)
+        return LRM + "│" + ("│").join(parts) + "│"
 
     lines = [hline("┌", "┬", "┐")]
     lines.append(dataline(headers))