feat: Begins adding climate zone client and location clients.

Sources/CoreModels/ClimateZone.swift

@@ -0,0 +1,67 @@
+import Foundation
+
+public enum ClimateZone {
+
+  public enum ZoneType: String, CaseIterable, Codable, Equatable, Sendable {
+    // NOTE: Keep in this order.
+
+    case hotHumid
+    case moist
+    case dry
+    case marine
+
+    // FIX: Return ZoneIdentifiers.
+    public var zoneIdentifiers: [String] {
+      switch self {
+      case .dry:
+        return ["2B", "3B", "4B", "5B", "6B", "7B"]
+      case .hotHumid:
+        return ["1A", "2A"]
+      case .marine:
+        return ["3C", "4C"]
+      case .moist:
+        return ["3A", "4A", "5A", "6A", "7A"]
+      }
+    }
+
+    public var cfmPerTon: Int {
+      switch self {
+      case .dry: return 450
+      case .hotHumid: return 350
+      case .marine, .moist: return 400
+      }
+    }
+
+    public var label: String {
+      return "\(self == .hotHumid ? "Hot Humid" : rawValue.capitalized) (\(zoneIdentifiers.joined(separator: ", ")))"
+    }
+
+    /// Represents climate zone identifiers.
+    public enum ZoneIdentifier: String, CaseIterable, Codable, Equatable, Sendable {
+      // A zones (hotHumid)
+      case oneA = "1A"
+      case twoA = "2A"
+      // A zones (moist)
+      case threeA = "3A"
+      case fourA = "4A"
+      case fiveA = "5A"
+      case sixA = "6A"
+      case sevenA = "7A"
+
+      // B zones (dry)
+      case twoB = "2B"
+      case threeB = "3B"
+      case fourB = "4B"
+      case fiveB = "5B"
+      case sixB = "6B"
+      case sevenB = "7B"
+
+      // C zones (marine)
+      case threeC = "3C"
+      case fourC = "4C"
+
+      public var label: String { rawValue }
+
+    }
+  }
+}

Sources/CoreModels/Cooridinates.swift

@@ -0,0 +1,11 @@
+/// Represents a location coordinates.
+public struct Coordinates: Codable, Equatable, Sendable {
+
+  public let latitude: Double
+  public let longitude: Double
+
+  public init(latitude: Double, longitude: Double) {
+    self.latitude = latitude
+    self.longitude = longitude
+  }
+}

Sources/CoreModels/DesignTemperatures.swift

@@ -0,0 +1,11 @@
+/// Represents design temperature conditions.
+public struct DesignTemperatures: Codable, Equatable, Sendable {
+
+  public let cooling: Double
+  public let heating: Double
+
+  public init(cooling: Double, heating: Double) {
+    self.cooling = cooling
+    self.heating = heating
+  }
+}

Sources/CoreModels/Location.swift

@@ -0,0 +1,27 @@
+import Foundation
+
+public struct Location: Codable, Equatable, Sendable {
+
+  public let city: String
+  public let state: String
+  public let zipCode: String
+  public let stateCode: String
+  public let county: String
+  public let coordinates: Coordinates
+
+  public init(
+    city: String,
+    state: String,
+    stateCode: String,
+    zipCode: String,
+    county: String,
+    coordinates: Coordinates
+  ) {
+    self.city = city
+    self.zipCode = zipCode
+    self.state = state
+    self.stateCode = stateCode
+    self.county = county
+    self.coordinates = coordinates
+  }
+}