feat(ui): gemini-style top-anchored scroll, centered chat layout and task drawer sync (closes #49)

services/prompts/diff_engine.py

@@ -10,16 +10,24 @@ AI-CONTEXT-ANCHORS:
 ===============================================================================
 """
 
-from typing import Tuple, Dict
+from typing import Tuple, Dict, List, Set
 from core.connection import get_connection
 
-
-# ANCHOR[PROMPT_DIFF_BUILDER]
-def build_prompt_diff(action: str, section_id: int, item_id: int, content: str = "", prompt_name: str = "main_agent") -> Tuple[str, str]:
-    """
-    Возвращает кортеж (merged_draft_text, diff_html_for_ui).
-    """
+def build_prompt_diff(
+    action: str, 
+    section_id: int = None, 
+    item_id: int = None, 
+    content: str = "", 
+    delete_nodes: List[Tuple[int, int]] = None,
+    prompt_name: str = "main_agent"
+) -> Tuple[str, str]:
     act = (action or "ADD").upper()
+    nodes_to_delete: Set[Tuple[int, int]] = set()
+
+    if delete_nodes:
+        nodes_to_delete.update(delete_nodes)
+    elif act == "DELETE" and section_id is not None and item_id is not None:
+        nodes_to_delete.add((section_id, item_id))
 
     with get_connection(row_factory=True) as conn:
         cursor = conn.cursor()
@@ -32,46 +40,40 @@ def build_prompt_diff(action: str, section_id: int, item_id: int, content: str =
         existing_nodes = cursor.fetchall()
 
     nodes_dict = {(r["section_id"], r["item_id"]): r["content"] for r in existing_nodes}
+    nodes_dict_for_draft = {k: v for k, v in nodes_dict.items() if k not in nodes_to_delete}
     
-    # Формируем словарь для чистого текста
-    nodes_dict_for_draft = {k: v for k, v in nodes_dict.items() if k != (section_id, item_id)} if act == "DELETE" else dict(nodes_dict)
-    if act != "DELETE":
+    if act not in ["DELETE", "BATCH_DELETE"] and section_id is not None and item_id is not None:
         nodes_dict_for_draft[(section_id, item_id)] = content
 
     draft_lines = []
     curr_sec = None
     for (s_id, i_id), txt in sorted(nodes_dict_for_draft.items()):
         if i_id == 0:
-            if curr_sec is not None: 
-                draft_lines.append("")
+            if curr_sec is not None: draft_lines.append("")
             draft_lines.append(f"{s_id}. {txt}")
             curr_sec = s_id
         else:
             draft_lines.append(f"   {s_id}.{i_id}. {txt}")
     merged_prompt = "\n".join(draft_lines)
 
-    # Формируем HTML Diff
     diff_lines = []
     curr_sec = None
     display_nodes = dict(nodes_dict)
-    if act != "DELETE":
+    if act not in ["DELETE", "BATCH_DELETE"] and section_id is not None and item_id is not None:
         display_nodes[(section_id, item_id)] = content
 
     for (s_id, i_id), txt in sorted(display_nodes.items()):
         if i_id == 0:
-            if curr_sec is not None: 
-                diff_lines.append("")
+            if curr_sec is not None: diff_lines.append("")
             diff_lines.append(f"{s_id}. {txt}")
             curr_sec = s_id
         else:
-            if s_id == section_id and i_id == item_id:
-                if act == "DELETE":
-                    line_str = f'   <span class="line-through text-rose-600 font-bold bg-rose-50 px-1.5 py-0.5 rounded border border-rose-300 opacity-80">{s_id}.{i_id}. {txt} [УДАЛЕНИЕ]</span>'
-                else:
-                    line_str = f'   <span class="text-rose-600 font-bold bg-rose-50 px-1.5 py-0.5 rounded border border-rose-300">{s_id}.{i_id}. {txt}</span>'
+            if (s_id, i_id) in nodes_to_delete:
+                line_str = f'   <span class="line-through text-rose-600 font-bold bg-rose-50 px-1.5 py-0.5 rounded border border-rose-300 opacity-80">{s_id}.{i_id}. {txt} [УДАЛЕНИЕ]</span>'
+            elif act == "ADD" and s_id == section_id and i_id == item_id:
+                line_str = f'   <span class="text-rose-600 font-bold bg-rose-50 px-1.5 py-0.5 rounded border border-rose-300">{s_id}.{i_id}. {txt}</span>'
             else:
                 line_str = f"   {s_id}.{i_id}. {txt}"
             diff_lines.append(line_str)
 
-    diff_html = "\n".join(diff_lines)
-    return merged_prompt, diff_html
+    return merged_prompt, "\n".join(diff_lines)

services/prompts/service.py

@@ -7,7 +7,7 @@ ROLE: Единый доменный сервис управления систе
 ===============================================================================
 """
 
-from typing import Tuple, Dict, Any
+from typing import Tuple, Dict, Any, List, Optional
 from .repository import repo_get_active_prompt, repo_apply_prompt_action, repo_save_full_prompt
 from .diff_engine import build_prompt_diff
 
@@ -22,16 +22,28 @@ def apply_prompt_action(action: str, section_id: int, item_id: int, content: str
     repo_apply_prompt_action(action, section_id, item_id, content)
 
 
-def save_full_prompt_draft(draft_text: str) -> None:
+def save_full_prompt_draft(draft_text: str, prompt_name: str = "main_agent") -> None:
     """Сохранить полный черновик промпта."""
-    repo_save_full_prompt(draft_text)
+    repo_save_full_prompt(draft_text, prompt_name=prompt_name)
 
 
-def create_prompt_preview(action: str, section_id: int, item_id: int, content: str = "") -> Tuple[str, str, str]:
+def create_prompt_preview(
+    action: str, 
+    section_id: Optional[int] = None, 
+    item_id: Optional[int] = None, 
+    content: str = "",
+    delete_nodes: Optional[List[Tuple[int, int]]] = None
+) -> Tuple[str, str, str]:
     """
     Формирует черновик и diff.
     Возвращает (merged_draft, diff_html, baseline_prompt).
     """
     baseline = repo_get_active_prompt()
-    draft, diff_html = build_prompt_diff(action, section_id, item_id, content)
+    draft, diff_html = build_prompt_diff(
+        action=action, 
+        section_id=section_id, 
+        item_id=item_id, 
+        content=content,
+        delete_nodes=delete_nodes
+    )
     return draft, diff_html, baseline