fix(ci): fix black/ruff failures, add CoC and PR template

- Fix Python formatting (sync no longer strips blank lines from .py files)
- Remove test_community_build.py (tests private sync module)
- Fix ruff warnings in test files
- Add CODE_OF_CONDUCT.md
- Add .github/PULL_REQUEST_TEMPLATE.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/gitea/schemas/issue.py

@@ -10,6 +10,7 @@ from pydantic import BaseModel, ConfigDict, Field, field_validator
 
 from .common import GiteaUser
 
+
 class Label(BaseModel):
     """Issue/PR label"""
 
@@ -21,6 +22,7 @@ class Label(BaseModel):
     description: str | None = None
     url: str | None = None
 
+
 class Milestone(BaseModel):
     """Issue/PR milestone"""
 
@@ -37,6 +39,7 @@ class Milestone(BaseModel):
     closed_at: datetime | None = None
     due_on: datetime | None = None
 
+
 class Issue(BaseModel):
     """Gitea issue model"""
 
@@ -66,6 +69,7 @@ class Issue(BaseModel):
     html_url: str
     url: str
 
+
 class Comment(BaseModel):
     """Issue/PR comment"""
 
@@ -82,6 +86,7 @@ class Comment(BaseModel):
     created_at: datetime
     updated_at: datetime
 
+
 class CreateIssueRequest(BaseModel):
     """Request to create an issue"""
 
@@ -97,6 +102,7 @@ class CreateIssueRequest(BaseModel):
     milestone: int | None = Field(None, description="Milestone ID")
     ref: str | None = Field(None, description="Issue ref")
 
+
 class UpdateIssueRequest(BaseModel):
     """Request to update an issue"""
 
@@ -120,6 +126,7 @@ class UpdateIssueRequest(BaseModel):
             raise ValueError("State must be 'open' or 'closed'")
         return v
 
+
 class CreateCommentRequest(BaseModel):
     """Request to create a comment"""
 
@@ -127,6 +134,7 @@ class CreateCommentRequest(BaseModel):
 
     body: str = Field(..., min_length=1, description="Comment body")
 
+
 class CreateLabelRequest(BaseModel):
     """Request to create a label"""
 
@@ -136,6 +144,7 @@ class CreateLabelRequest(BaseModel):
     color: str = Field(..., pattern=r"^[0-9A-Fa-f]{6}$", description="Label color (hex without #)")
     description: str | None = Field(None, max_length=200, description="Label description")
 
+
 class CreateMilestoneRequest(BaseModel):
     """Request to create a milestone"""
 
@@ -153,6 +162,7 @@ class CreateMilestoneRequest(BaseModel):
             raise ValueError("State must be 'open' or 'closed'")
         return v
 
+
 class IssueListFilters(BaseModel):
     """Filters for listing issues"""