Fix population aggregation system to eliminate double-counting

- Fixed core issue where cells.pop and burg.population were both being counted
- Changed aggregation logic across all modules to use either burg OR cell population, never both
- If cell has burg: count only burg population (represents all people in that area)
- If cell has no burg: count only cells.pop (represents scattered population)

Files modified:
- modules/burgs-and-states.js: Fixed state population aggregation
- modules/ui/provinces-editor.js: Fixed province population aggregation
- modules/dynamic/editors/cultures-editor.js: Fixed culture population aggregation
- modules/dynamic/editors/religions-editor.js: Fixed religion population aggregation
- modules/ui/biomes-editor.js: Fixed biome population aggregation
- modules/ui/zones-editor.js: Fixed zone population calculations (2 locations)
- modules/military-generator.js: Redesigned military generation to use only burg populations

Military system changes:
- Removed rural military generation (all forces now come from settlements)
- Only burgs with 500+ people can maintain military forces
- Military strength based on actual burg population (2.5% mobilization rate)

Result: Population totals now consistent across all CSV exports (~2M total vs previous 40x discrepancy)

modules/dynamic/editors/states-editor.js

@@ -161,7 +161,7 @@ function statesEditorAddLines() {
     if (s.removed) continue;
     const area = getArea(s.area);
     const rural = s.rural * populationRate;
-    const urban = s.urban * populationRate * urbanization;
+    const urban = s.urban * 1000 * urbanization;
     const population = rn(rural + urban);
     const populationTip = `Total population: ${si(population)}; Rural population: ${si(rural)}; Urban population: ${si(
       urban
@@ -1417,10 +1417,12 @@ function downloadStatesCsv() {
   const headers = `Id,State,Full Name,Form,Color,Capital,Culture,Type,Expansionism,Cells,Burgs,Area ${unit},Total Population,Rural Population,Urban Population`;
   const lines = Array.from($body.querySelectorAll(":scope > div"));
   const data = lines.map($line => {
-    const {id, name, form, color, capital, culture, type, expansionism, cells, burgs, area, population} = $line.dataset;
+    const {id, name, form, color, capital, culture, type, expansionism, cells, burgs, area} = $line.dataset;
     const {fullName = "", rural, urban} = pack.states[+id];
+    // Rural: convert abstract points to people, Urban: already in thousands so convert to people
     const ruralPopulation = Math.round(rural * populationRate);
-    const urbanPopulation = Math.round(urban * populationRate * urbanization);
+    const urbanPopulation = Math.round(urban * 1000 * urbanization);
+    const totalPopulation = ruralPopulation + urbanPopulation; // Ensure total matches parts
     return [
       id,
       name,
@@ -1434,7 +1436,7 @@ function downloadStatesCsv() {
       cells,
       burgs,
       area,
-      population,
+      totalPopulation, // Use calculated total instead of dataset.population
       ruralPopulation,
       urbanPopulation
     ].join(",");