feat: add --my-tasks mode for open assigned issues (#71)

List open Redmine issues assigned to the current (or overridden) user,
sorted by priority rank (P1..P5) then version due date with a stable id
tie-break. Renders an OSC 8 hyperlinked console table on stdout and a
counts/hours summary line on stderr; version due dates are fetched once
per unique version, unavailable versions degrade to an empty due date.

Also migrates the codebase to ruff 0.17.3 defaults (PEP 585/604
annotations, targeted noqa for intentional blind excepts and CLI root
logging). Behavior-neutral: 408 tests pass with -W error.

redmine_reporter/formatters/csv.py

@@ -1,6 +1,5 @@
 import csv
 import io
-from typing import List
 
 from ..types import ReportRow
 from .base import Formatter
@@ -19,7 +18,7 @@ class CSVFormatter(Formatter):
         super().__init__()
         self.no_time = no_time
 
-    def format(self, rows: List[ReportRow]) -> str:
+    def format(self, rows: list[ReportRow]) -> str:
         output = io.StringIO()
         writer = csv.writer(output, dialect="excel")
         headers = ["Project", "Version", "Issue ID", "Subject", "Status"]
@@ -40,7 +39,7 @@ class CSVFormatter(Formatter):
             writer.writerow(data)
         return output.getvalue()
 
-    def save(self, rows: List[ReportRow], output_path: str) -> None:
+    def save(self, rows: list[ReportRow], output_path: str) -> None:
         content = self.format(rows)
         with open(output_path, "w", encoding="utf-8-sig", newline="") as f:
             f.write(content)