journal: multi-select emotions and per-category writing templates

- Mood switches from a single enum column to a many-to-many
  JournalEntryMood table so an entry can carry several feelings at
  once; the vocabulary is trimmed to 9 named emotions (dropped the
  overlapping satisfaction scale) with unified noun-style labels.
- Categories can define a content_template that pre-fills the "new
  entry" textarea when selected (only if the user hasn't started
  typing), seeded with a Story/Feelings/Decisions/Insights/Actions
  reflection template on the default "일상" category.
- Fixes a real attribute-injection bug found while building the
  template feature: Jinja's built-in |tojson filter doesn't escape
  double quotes, which breaks a double-quoted x-data="..." attribute
  when the JSON payload contains one; added |forceescape and a
  regression test.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/routers/journal_pages.py

@@ -30,6 +30,9 @@ JOURNAL_MOOD_OPTIONS = [
 ]
 templates.env.globals["journal_mood_options"] = JOURNAL_MOOD_OPTIONS
 templates.env.globals["journal_mood_emoji"] = {m.value: emoji for m, emoji, _ in JOURNAL_MOOD_OPTIONS}
+# Jinja2 내장 |tojson 필터가 이 policy를 읽어서 json.dumps에 넘긴다 — 기본값(ensure_ascii=True)이면
+# 한글이 \uXXXX로 이스케이프돼 응답 본문에서 읽기 힘들어진다.
+templates.env.policies["json.dumps_kwargs"] = {"ensure_ascii": False}
 
 
 def _parse_moods(raw: str) -> list[JournalMood]:
@@ -111,6 +114,7 @@ def journal_page(
             "tab": tab,
             "categories": categories,
             "category_id": category_id,
+            "category_templates": {str(c.id): c.content_template or "" for c in categories},
             "entry_counts": journal_service.count_entries_by_category(db, current.id) if tab == "manage" else {},
             "on_this_day": journal_service.get_on_this_day(db, current.id, today),
             "prompt": journal_service.get_random_prompt(db),
@@ -274,14 +278,18 @@ def delete_attachment_page(
 
 @router.post("/journal/categories/new")
 def create_category_page(
-    request: Request, name: str = Form(""), color: str | None = Form(None), db: Session = Depends(get_db)
+    request: Request,
+    name: str = Form(""),
+    color: str | None = Form(None),
+    content_template: str | None = Form(None),
+    db: Session = Depends(get_db),
 ):
     current = _current_user_or_redirect(request, db)
     if isinstance(current, RedirectResponse):
         return current
 
     try:
-        data = JournalCategoryCreate(name=name, color=color)
+        data = JournalCategoryCreate(name=name, color=color, content_template=content_template)
     except ValidationError as exc:
         message = exc.errors()[0]["msg"].removeprefix("Value error, ")
         return HTMLResponse(message)
@@ -303,6 +311,7 @@ def edit_category_page(
     category_id: int,
     name: str = Form(""),
     color: str | None = Form(None),
+    content_template: str | None = Form(None),
     db: Session = Depends(get_db),
 ):
     current = _current_user_or_redirect(request, db)
@@ -314,7 +323,7 @@ def edit_category_page(
         return Response(status_code=404)
 
     try:
-        data = JournalCategoryCreate(name=name, color=color)
+        data = JournalCategoryCreate(name=name, color=color, content_template=content_template)
     except ValidationError as exc:
         message = exc.errors()[0]["msg"].removeprefix("Value error, ")
         return HTMLResponse(message)