fix(spp_area, spp_gis_report): add labels and help to area form fields

spp_area/views/area_base.xml

@@ -61,7 +61,7 @@
                     <field name="level" invisible="1" />
 
                     <!-- Main Information -->
-                    <group>
+                    <group name="main_info">
                         <group string="Basic Information">
                             <field name="code" placeholder="Area Code..." />
                             <field
@@ -72,14 +72,21 @@
                             <field name="complete_name" readonly="1" />
                         </group>
                         <group string="Classification">
-                            <field name="area_level" />
+                            <field
+                                name="area_level"
+                                string="Admin Level"
+                                help="Hierarchical level of this area, automatically computed from its position in the area tree (0 = top-level)."
+                            />
                             <field
                                 name="area_type_id"
+                                string="Area Type"
+                                help="Classification type for this area (e.g., Province, Municipality, Barangay)."
                                 options="{'no_open': True, 'no_create': True}"
                             />
                             <field
                                 name="area_sqkm"
-                                string="Area (sq/km)"
+                                string="Area (km²)"
+                                help="Geographic size of this area in square kilometers."
                                 widget="float"
                             />
                         </group>

spp_gis_report/models/area_ext.py

@@ -17,20 +17,20 @@ class Area(models.Model):
     # ===== Reference Data for Normalization =====
     population = fields.Integer(
         "Population",
-        help="Total population from census or estimate",
+        help="Total population from census or official estimate. Used for per-capita normalization in GIS reports.",
     )
     population_date = fields.Date(
         "Population Data Date",
-        help="Date of population data",
+        help="Date when the population data was collected or published.",
     )
     population_source = fields.Char(
         "Population Data Source",
-        help="Source of population data (e.g., 'National Census 2020')",
+        help="Source of the population data, e.g., 'National Census 2020' or 'UNFPA Estimate'.",
     )
 
     household_count = fields.Integer(
         "Household Count",
-        help="Number of households in this area",
+        help="Number of households in this area. Used for per-household normalization in GIS reports.",
     )
 
     # ===== Registry Counts (Updated via scheduled refresh) =====

spp_gis_report/views/area_views.xml

@@ -13,17 +13,21 @@ Part of OpenSPP. See LICENSE file for full copyright and licensing details.
         <field name="inherit_id" ref="spp_area.view_spparea_form" />
         <field name="priority">20</field>
         <field name="arch" type="xml">
-            <!-- Add Reference Data section after area_sqkm field -->
-            <xpath expr="//field[@name='area_sqkm']" position="after">
+            <!-- Add Reference Data section after the main info group -->
+            <xpath expr="//group[@name='main_info']" position="after">
                 <separator string="Reference Data for GIS Reports" />
+                <div class="text-muted small mb-2">
+                    These fields are populated from external sources such as national census data or official estimates.
+                    They are used for normalization in GIS reports (e.g., per-capita or per-household calculations).
+                </div>
                 <group name="gis_reference_data" col="2">
                     <group name="population_group">
-                        <field name="population" />
-                        <field name="population_date" />
-                        <field name="population_source" />
+                        <field name="population" readonly="1" />
+                        <field name="population_date" readonly="1" />
+                        <field name="population_source" readonly="1" />
                     </group>
                     <group name="household_group">
-                        <field name="household_count" />
+                        <field name="household_count" readonly="1" />
                     </group>
                 </group>
             </xpath>