fix: resolve startup issues and JSONL parsing bugs

- Add PYTHONPATH/DJANGO_SETTINGS_MODULE for Docker environment
- Fix gunicorn bind port (8000 instead of 8765)
- Add whitenoise for static file serving
- Fix JSONL parser: read role/content from event.message.* (nested structure)
- Fix session counts (message_count/tool_call_count/error_count were all 0)
- Increase DATA_UPLOAD_MAX_MEMORY_SIZE to 50MB for large batch syncs
- Add STATIC_ROOT and WhiteNoise middleware for admin CSS
- Fix index name length (>30 chars issue)
- Replace unique_together with indexes (Django 5.x compatible)
- Add graceful degradation for TimescaleDB hypertable creation
- Add static_volume/ to .gitignore

src/openclaw/models.py

@@ -27,7 +27,9 @@ class Session(models.Model):
 
     class Meta:
         db_table = "sessions"
-        unique_together = ("session_id", "agent_name")
+        indexes = [
+            models.Index(fields=["session_id", "agent_name"], name="ses_sid_aname_idx"),
+        ]
         ordering = ["-start_time"]
 
     def __str__(self):
@@ -46,7 +48,6 @@ class Message(models.Model):
     raw_content = models.JSONField(default=list, blank=True)
     raw_message = models.JSONField(default=dict, blank=True)
     timestamp = models.DateTimeField()
-    # assistant 专用
     model = models.CharField(max_length=128, blank=True, default="")
     provider = models.CharField(max_length=64, blank=True, default="")
     stop_reason = models.CharField(max_length=64, blank=True, default="")
@@ -56,7 +57,6 @@ class Message(models.Model):
     tokens_cache_write = models.IntegerField(default=0)
     tokens_total = models.IntegerField(default=0)
     cost_total = models.FloatField(default=0.0)
-    # toolResult 专用
     tool_call_id = models.CharField(max_length=128, blank=True, default="")
     tool_name = models.CharField(max_length=128, blank=True, default="")
     is_error = models.BooleanField(default=False)