Add documentation for user encounter creation query for ssmm

Care/Encounter/userbycount_encounterscreated_ssmm.md

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+# User by Count - Encounters Created
+
+> Number of encounters created by each user
+
+## Purpose
+
+This query tracks encounter creation activity by user, showing how many encounters each staff member has created. It's useful for measuring staff productivity, workload distribution, and identifying the most active users in the system.
+
+## Parameters
+
+| Parameter | Type | Description | Example |
+|-----------|------|-------------|---------|
+| `encounter_date` | DATE | Filters encounters by creation date | `DATE(emr_encounter.created_date) = '2026-01-06'` |
+| `user_name` | TEXT | Filters by user name | `'John'` |
+
+---
+
+## Query
+
+```sql
+SELECT
+    CONCAT(users_user.first_name, ' ', users_user.last_name) AS user_name,
+    COUNT(emr_encounter.id) AS total_encounter
+FROM emr_encounter
+JOIN users_user ON emr_encounter.created_by_id = users_user.id
+WHERE emr_encounter.deleted = FALSE
+--   [[AND {{encounter_date}}]]
+--   [[AND CONCAT(users_user.first_name, ' ', users_user.last_name) = {{user_name}}]]
+GROUP BY users_user.first_name, users_user.last_name
+ORDER BY total_encounter DESC;
+```
+
+
+## Notes
+
+- Only includes active encounters (deleted = FALSE)
+- Results are ordered by encounter count (highest to lowest) to show most active users first
+
+*Last updated: 2026-01-06*