feat: landing page analytics goals and sticky pay button

- Add sticky_pay_button, analytics_view_enabled, analytics_view_goal,
  analytics_click_enabled, analytics_click_goal columns to LandingPage
- Add fields to CRUD updatable fields, admin create/update/detail
  schemas, create_landing() kwargs, _landing_to_detail() response
- Expose sticky_pay_button and analytics fields in public landing
  config response for frontend Yandex Metrika integration
- Add migration 0062 with idempotent column checks

Based on PR #2852 by @smediainfo — CI/CD workflow changes excluded
(hardcoded version strings would regress dynamic manifest reading)

app/cabinet/routes/admin_landings.py

@@ -205,6 +205,11 @@ class LandingCreateRequest(BaseModel):
     discount_ends_at: datetime | None = None
     discount_badge_text: dict[str, str] | None = None
     background_config: dict | None = None
+    sticky_pay_button: bool = False
+    analytics_view_enabled: bool = False
+    analytics_view_goal: str | None = Field(default=None, max_length=64)
+    analytics_click_enabled: bool = False
+    analytics_click_goal: str | None = Field(default=None, max_length=64)
 
     @field_validator('background_config')
     @classmethod
@@ -314,6 +319,11 @@ class LandingUpdateRequest(BaseModel):
     discount_ends_at: datetime | None = None
     discount_badge_text: dict[str, str] | None = None
     background_config: dict | None = None
+    sticky_pay_button: bool | None = None
+    analytics_view_enabled: bool | None = None
+    analytics_view_goal: str | None = Field(default=None, max_length=64)
+    analytics_click_enabled: bool | None = None
+    analytics_click_goal: str | None = Field(default=None, max_length=64)
 
     @field_validator('background_config')
     @classmethod
@@ -461,6 +471,11 @@ class LandingDetailResponse(BaseModel):
     discount_ends_at: datetime | None = None
     discount_badge_text: dict[str, str] | None = None
     background_config: dict | None = None
+    sticky_pay_button: bool = False
+    analytics_view_enabled: bool = False
+    analytics_view_goal: str | None = None
+    analytics_click_enabled: bool = False
+    analytics_click_goal: str | None = None
     created_at: datetime | None = None
     updated_at: datetime | None = None
 
@@ -638,6 +653,11 @@ async def create_landing_page(
         discount_ends_at=request.discount_ends_at,
         discount_badge_text=request.discount_badge_text,
         background_config=request.background_config,
+        sticky_pay_button=request.sticky_pay_button,
+        analytics_view_enabled=request.analytics_view_enabled,
+        analytics_view_goal=request.analytics_view_goal,
+        analytics_click_enabled=request.analytics_click_enabled,
+        analytics_click_goal=request.analytics_click_goal,
     )
 
     logger.info('Admin created landing page', admin_id=admin.id, slug=landing.slug, landing_id=landing.id)
@@ -1068,6 +1088,11 @@ def _landing_to_detail(landing: LandingPage) -> LandingDetailResponse:
         discount_ends_at=landing.discount_ends_at,
         discount_badge_text=landing.discount_badge_text,
         background_config=landing.background_config,
+        sticky_pay_button=landing.sticky_pay_button,
+        analytics_view_enabled=landing.analytics_view_enabled,
+        analytics_view_goal=landing.analytics_view_goal,
+        analytics_click_enabled=landing.analytics_click_enabled,
+        analytics_click_goal=landing.analytics_click_goal,
         created_at=landing.created_at,
         updated_at=landing.updated_at,
     )

app/cabinet/routes/landing.py

@@ -99,6 +99,11 @@ class LandingConfigResponse(BaseModel):
     meta_description: str | None = None
     discount: LandingDiscountInfo | None = None  # null if no active discount
     background_config: dict | None = None
+    sticky_pay_button: bool = False
+    analytics_view_enabled: bool = False
+    analytics_view_goal: str | None = None
+    analytics_click_enabled: bool = False
+    analytics_click_goal: str | None = None
 
 
 _EMAIL_RE = re.compile(r'^[a-zA-Z0-9._%+\-]+@[a-zA-Z0-9.\-]+\.[a-zA-Z]{2,}$')
@@ -535,6 +540,11 @@ async def get_landing_config(
         meta_description=resolve_locale_text(landing.meta_description, lang) or None,
         discount=discount,
         background_config=landing.background_config,
+        sticky_pay_button=landing.sticky_pay_button,
+        analytics_view_enabled=landing.analytics_view_enabled,
+        analytics_view_goal=landing.analytics_view_goal,
+        analytics_click_enabled=landing.analytics_click_enabled,
+        analytics_click_goal=landing.analytics_click_goal,
     )
 
 

app/database/crud/landing.py

@@ -76,6 +76,11 @@ _LANDING_UPDATABLE_FIELDS = frozenset(
         'discount_ends_at',
         'discount_badge_text',
         'background_config',
+        'sticky_pay_button',
+        'analytics_view_enabled',
+        'analytics_view_goal',
+        'analytics_click_enabled',
+        'analytics_click_goal',
     }
 )
 

app/database/models.py

@@ -3459,6 +3459,13 @@ class LandingPage(Base):
     background_config = Column(
         JSON, nullable=True
     )  # AnimationConfig: {enabled, type, settings, opacity, blur, reducedOnMobile}
+    # Sticky pay button on mobile (full-width fixed bottom)
+    sticky_pay_button = Column(Boolean, nullable=False, default=False, server_default=text('false'))
+    # Yandex Metrika landing-level conversion goals
+    analytics_view_enabled = Column(Boolean, nullable=False, default=False, server_default=text('false'))
+    analytics_view_goal = Column(String(64), nullable=True)
+    analytics_click_enabled = Column(Boolean, nullable=False, default=False, server_default=text('false'))
+    analytics_click_goal = Column(String(64), nullable=True)
     created_at = Column(AwareDateTime(), server_default=func.now())
     updated_at = Column(AwareDateTime(), server_default=func.now(), onupdate=func.now())
 

migrations/alembic/versions/0062_add_landing_analytics_and_sticky.py

@@ -0,0 +1,62 @@
+"""add landing_pages analytics columns + sticky_pay_button
+
+Revision ID: 0062
+Revises: 0061
+Create Date: 2026-04-22
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = '0062'
+down_revision: Union[str, None] = '0061'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+NEW_COLUMNS = (
+    (
+        'sticky_pay_button',
+        sa.Column('sticky_pay_button', sa.Boolean(), nullable=False, server_default=sa.text('false')),
+    ),
+    (
+        'analytics_view_enabled',
+        sa.Column('analytics_view_enabled', sa.Boolean(), nullable=False, server_default=sa.text('false')),
+    ),
+    ('analytics_view_goal', sa.Column('analytics_view_goal', sa.String(64), nullable=True)),
+    (
+        'analytics_click_enabled',
+        sa.Column('analytics_click_enabled', sa.Boolean(), nullable=False, server_default=sa.text('false')),
+    ),
+    ('analytics_click_goal', sa.Column('analytics_click_goal', sa.String(64), nullable=True)),
+)
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    for col_name, col_def in NEW_COLUMNS:
+        result = conn.execute(
+            sa.text(
+                'SELECT EXISTS (SELECT 1 FROM information_schema.columns '
+                "WHERE table_name = 'landing_pages' AND column_name = :col)"
+            ),
+            {'col': col_name},
+        )
+        if not result.scalar():
+            op.add_column('landing_pages', col_def)
+
+
+def downgrade() -> None:
+    conn = op.get_bind()
+    for col_name, _ in reversed(NEW_COLUMNS):
+        result = conn.execute(
+            sa.text(
+                'SELECT EXISTS (SELECT 1 FROM information_schema.columns '
+                "WHERE table_name = 'landing_pages' AND column_name = :col)"
+            ),
+            {'col': col_name},
+        )
+        if result.scalar():
+            op.drop_column('landing_pages', col_name)