docs: remove references to the source app and recording

Prepare for open-sourcing: scrub the prior-art attribution from the spec,
agent guide, and code comments so the project documents its own behavior.

- Reword RULES_FEATURE_SPEC.md to describe OpenAppLock's rules feature
  directly (drop the screen-recording source line and "as observed"/
  "not demoed"/"as shown" framing)
- Replace "the reference app/UI/style/defaults" comments and test names
  with direct descriptions of the behavior
- No behavior change; comments, docs, and @Test display names only

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Shared/RuleConfiguration.swift

@@ -26,8 +26,8 @@ enum RuleConfiguration: Hashable, Sendable {
         }
     }
 
-    /// The default configuration for a brand-new rule of the given kind, using
-    /// the reference app's defaults (9–5 schedule, 45m/day, 5 opens/day).
+    /// The default configuration for a brand-new rule of the given kind
+    /// (9–5 schedule, 45m/day, 5 opens/day).
     static func `default`(for kind: RuleKind) -> RuleConfiguration {
         switch kind {
         case .schedule: .schedule(ScheduleConfig())

Shared/RuleKind.swift

@@ -5,7 +5,7 @@
 
 import Foundation
 
-/// The three kinds of blocking rules, mirroring the reference app's "New Rule" sheet.
+/// The three kinds of blocking rules offered on the "New Rule" sheet.
 enum RuleKind: String, Codable, CaseIterable, Sendable {
     /// Block selected apps during a recurring time window.
     case schedule
@@ -38,7 +38,7 @@ enum RuleKind: String, Codable, CaseIterable, Sendable {
         }
     }
 
-    /// Default name given to a brand-new rule of this kind (Opal: "In the Zone", "Time Keeper").
+    /// Default name given to a brand-new rule of this kind (e.g. "In the Zone", "Time Keeper").
     var defaultRuleName: String {
         switch self {
         case .schedule: "In the Zone"

Shared/RuleSchedule.swift

@@ -76,7 +76,7 @@ struct RuleSchedule: Hashable, Sendable {
 }
 
 extension RuleSchedule {
-    /// "09:00" style label for a minutes-from-midnight value, matching the reference UI.
+    /// "09:00" style label for a minutes-from-midnight value.
     static func timeLabel(forMinutes minutes: Int) -> String {
         let clamped = ((minutes % (24 * 60)) + 24 * 60) % (24 * 60)
         return String(format: "%02d:%02d", clamped / 60, clamped % 60)

Shared/Weekday.swift

@@ -19,7 +19,7 @@ enum Weekday: Int, CaseIterable, Codable, Hashable, Sendable {
     static let weekends: Set<Weekday> = [.saturday, .sunday]
     static let everyDay: Set<Weekday> = Set(Weekday.allCases)
 
-    /// Display order used by the day picker, matching the reference UI: S M T W T F S.
+    /// Display order used by the day picker: S M T W T F S.
     static let displayOrder: [Weekday] = [
         .sunday, .monday, .tuesday, .wednesday, .thursday, .friday, .saturday,
     ]