update chicken weight to have chicken_area data as well

backend/database/ERD_Dashboard_Chicken_Counting.md

@@ -175,12 +175,7 @@ erDiagram
         int chicken_count "NOT NULL (n_weight_samples)"
         float uniformity "NOT NULL (Flock weight uniformity %)"
         float average_daily_gain "NOT NULL (ADG in grams/day)"
-        float area_cm2_median "Median body area in cm^2"
-        float minor_axis_cm_median "Median minor axis / width in cm"
-        float major_axis_cm_median "Median major axis / length in cm"
-        float gompertz_baseline_g "Theoretical Gompertz curve baseline"
-        float vision_gain_g "Allometric vision gain residual"
-        float rejection_rate "MAD outlier filter rejection percentage"
+        float chicken_area "NOT NULL DEFAULT 0.0 (Median chicken area in cm^2)"
         timestamp created_at "NOT NULL"
         timestamp updated_at "NOT NULL"
     }
@@ -308,8 +303,7 @@ Our edge pipeline aggregates floor camera runs and pushes clean daily rollups di
    - `chicken_count` $\leftarrow \sum \text{n\_weight\_samples}$ (valid non-outlier tracks).
    - `uniformity` $\leftarrow \text{flock size uniformity percentage}$.
    - `average_daily_gain` $\leftarrow \text{daily weight gain in grams/day}$.
-   - `area_cm2_median`, `minor_axis_cm_median`, `major_axis_cm_median` $\leftarrow \text{calibrated physical dimensions}$.
-   - `gompertz_baseline_g`, `vision_gain_g` $\leftarrow \text{audited growth model residual breakdown}$.
+   - `chicken_area` $\leftarrow \text{calibrated median chicken body area in cm²}$.
 
 ---
 

backend/database/ERD_dashboard.json

@@ -1290,6 +1290,22 @@
           "parent": "PF_pHT-a65sNfpEKlwq7-159",
           "label": "average_daily_gain float NOT NULL"
         },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-66"
+        },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area-col1",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-cw-area"
+        },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area-col2",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-cw-area",
+          "label": "chicken_area float NOT NULL"
+        },
         {
           "id": "PF_pHT-a65sNfpEKlwq7-321",
           "type": "node",
@@ -2537,4 +2553,4 @@
       ]
     }
   ]
-}
+}

backend/database/erd_schema.sql

@@ -147,8 +147,9 @@ CREATE INDEX IF NOT EXISTS idx_cycles_close_requested_by_id ON cycles (close_req
 -- -----------------------------------------------------------------------------
 CREATE TABLE IF NOT EXISTS flock (
     flock_id    SERIAL PRIMARY KEY,
-    flock_name  VARCHAR(30) NOT NULL,
-    kandang_id  INTEGER     NOT NULL REFERENCES kandang (kandang_id) ON DELETE CASCADE,
+    flock_name  VARCHAR(30)  NOT NULL,
+    iot_api_url VARCHAR(500) NOT NULL DEFAULT '',
+    kandang_id  INTEGER      NOT NULL REFERENCES kandang (kandang_id) ON DELETE CASCADE,
     created_at  TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at  TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP
 );
@@ -259,8 +260,9 @@ CREATE TABLE IF NOT EXISTS chicken_weight (
     doc_weight           INTEGER          NOT NULL,
     average_weight       FLOAT            NOT NULL,
     chicken_count        INTEGER          NOT NULL,
-    uniformity           FLOAT NOT NULL,
-    average_daily_gain   FLOAT NOT NULL,
+    uniformity           FLOAT            NOT NULL,
+    average_daily_gain   FLOAT            NOT NULL,
+    chicken_area         FLOAT            NOT NULL DEFAULT 0.0,
     created_at           TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     updated_at           TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
     cycle_id             INTEGER          NOT NULL REFERENCES cycles (cycle_id) ON DELETE CASCADE