feat(client,setting): complete Phase 2 with partitioned client_follow_logs

- apps/client (11 models): Client, ClientContact, ClientRequirement,
  ClientSchoolPreference, ClientFollowLog (partitioned),
  ClientFollowLogAttachment, ClientViewing, ClientPropertyMatch,
  ClientStatusLog, ClientFavoriteFolder, ClientFolderItem
- apps/client/0002 RunSQL: PARTITION BY RANGE(created_at) for
  client_follow_logs + monthly partitions + default; triggers
  update_client_last_follow + update_client_viewing_progress;
  partial unique index on client_no WHERE deleted_at IS NULL
- apps/setting (4 models): LookupGroup, LookupItem, TenantSetting,
  FieldRequirementRule (tenant schema only per spec)

manage.py check green; all 9 Phase 2 apps complete.

apps/client/models/viewing_match.py

@@ -0,0 +1,147 @@
+from django.contrib.postgres.fields import ArrayField
+from django.db import models
+
+from core.enums import (
+    ClientPropertyMatchGroup,
+    ClientPropertyMatchSource,
+    ClientPropertyMatchStatus,
+    ClientStatusLogChangeType,
+    ClientViewingIntent,
+    ClientViewingType,
+)
+from core.models.base import UUIDPrimaryKeyModel
+
+
+class ClientViewing(UUIDPrimaryKeyModel):
+    client = models.ForeignKey(
+        "fonrey_client.Client", on_delete=models.RESTRICT, related_name="viewings"
+    )
+    property = models.ForeignKey(
+        "fonrey_property.Property",
+        on_delete=models.RESTRICT,
+        related_name="client_viewings",
+    )
+    viewing_type = models.CharField(
+        max_length=20, choices=ClientViewingType.choices, default=ClientViewingType.VIEWING
+    )
+
+    agent = models.ForeignKey(
+        "org.Staff",
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name="led_viewings",
+    )
+    companion_ids = ArrayField(models.UUIDField(), blank=True, default=list)
+    cooperator_ids = ArrayField(models.UUIDField(), blank=True, default=list)
+
+    scheduled_at = models.DateTimeField(null=True, blank=True)
+    viewing_start_at = models.DateTimeField(null=True, blank=True)
+    viewing_end_at = models.DateTimeField(null=True, blank=True)
+
+    situation = models.TextField(blank=True, default="")
+    client_intent = models.CharField(
+        max_length=20, choices=ClientViewingIntent.choices, blank=True, default=""
+    )
+    viewing_progress = models.SmallIntegerField(null=True, blank=True)
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    deleted_at = models.DateTimeField(null=True, blank=True)
+    created_by = models.ForeignKey(
+        "org.Staff",
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name="created_client_viewings",
+    )
+
+    class Meta:
+        db_table = "client_viewings"
+        indexes = [
+            models.Index(
+                fields=["client", "-viewing_start_at"], name="idx_cv_client_time"
+            ),
+            models.Index(fields=["property"], name="idx_cv_property"),
+            models.Index(fields=["agent"], name="idx_cv_agent"),
+        ]
+
+
+class ClientPropertyMatch(UUIDPrimaryKeyModel):
+    client = models.ForeignKey(
+        "fonrey_client.Client", on_delete=models.CASCADE, related_name="property_matches"
+    )
+    property = models.ForeignKey(
+        "fonrey_property.Property",
+        on_delete=models.CASCADE,
+        related_name="client_matches",
+    )
+
+    match_source = models.CharField(
+        max_length=20,
+        choices=ClientPropertyMatchSource.choices,
+        default=ClientPropertyMatchSource.RECORDED,
+    )
+    match_group = models.CharField(
+        max_length=30, choices=ClientPropertyMatchGroup.choices, blank=True, default=""
+    )
+    match_score = models.DecimalField(
+        max_digits=5, decimal_places=2, null=True, blank=True
+    )
+    match_reasons = models.JSONField(null=True, blank=True)
+
+    status = models.CharField(
+        max_length=20,
+        choices=ClientPropertyMatchStatus.choices,
+        default=ClientPropertyMatchStatus.SUGGESTED,
+    )
+    shared_at = models.DateTimeField(null=True, blank=True)
+    feedback = models.CharField(max_length=50, blank=True, default="")
+    calculated_at = models.DateTimeField(auto_now_add=True)
+    created_by = models.ForeignKey(
+        "org.Staff",
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name="created_matches",
+    )
+
+    class Meta:
+        db_table = "client_property_matches"
+        constraints = [
+            models.UniqueConstraint(
+                fields=["client", "property"], name="uq_client_match_pair"
+            ),
+        ]
+        indexes = [
+            models.Index(
+                fields=["client", "match_source", "match_group"],
+                name="idx_cpm_client_grp",
+            ),
+            models.Index(fields=["client", "status"], name="idx_cpm_status"),
+        ]
+
+
+class ClientStatusLog(models.Model):
+    """Audit log; record-level immutable (no deleted_at)."""
+
+    id = models.UUIDField(primary_key=True)
+    client = models.ForeignKey(
+        "fonrey_client.Client", on_delete=models.RESTRICT, related_name="status_logs"
+    )
+    change_type = models.CharField(
+        max_length=30, choices=ClientStatusLogChangeType.choices
+    )
+    old_value = models.JSONField(null=True, blank=True)
+    new_value = models.JSONField(null=True, blank=True)
+    reason = models.TextField(blank=True, default="")
+    operator = models.ForeignKey(
+        "org.Staff", on_delete=models.RESTRICT, related_name="client_status_changes"
+    )
+    operated_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        db_table = "client_status_logs"
+        indexes = [
+            models.Index(fields=["client", "-operated_at"], name="idx_csl_client"),
+            models.Index(fields=["change_type", "-operated_at"], name="idx_csl_type"),
+        ]