feat: added external api endpoints for creating users and adding attachments to issues (#5193)

* feat: added external id and external source for issue attachments

* feat: added endpoint for creating users

* feat: added issue attachment endpoint

* fix: converted user to workspace member

* chore: removed code blocking adding issues when the cycle has been completed

* chore: update models

* chore: added user recent visited table

---------

Co-authored-by: pablohashescobar <nikhilschacko@gmail.com>
Co-authored-by: NarayanBavisetti <narayan3119@gmail.com>

apiserver/plane/db/models/recent_visit.py

@@ -0,0 +1,38 @@
+# Django imports
+from django.db import models
+from django.conf import settings
+
+# Module imports
+from .workspace import WorkspaceBaseModel
+
+
+class EntityNameEnum(models.TextChoices):
+    VIEW = "VIEW", "View"
+    PAGE = "PAGE", "Page"
+    ISSUE = "ISSUE", "Issue"
+    CYCLE = "CYCLE", "Cycle"
+    MODULE = "MODULE", "Module"
+    PROJECT = "PROJECT", "Project"
+
+
+class UserRecentVisit(WorkspaceBaseModel):
+    entity_identifier = models.UUIDField(null=True)
+    entity_name = models.CharField(
+        max_length=30,
+        choices=EntityNameEnum.choices,
+    )
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name="user_recent_visit",
+    )
+    visited_at = models.DateTimeField(auto_now=True)
+
+    class Meta:
+        verbose_name = "User Recent Visit"
+        verbose_name_plural = "User Recent Visits"
+        db_table = "user_recent_visits"
+        ordering = ("-created_at",)
+
+    def __str__(self):
+        return f"{self.entity_name} {self.user.email}"