fet: reduce LOC by reducing comments

apps/shared/db.ts

@@ -1,7 +1,6 @@
 export async function migrate(sql: any) {
   await sql`CREATE EXTENSION IF NOT EXISTS pgcrypto`;
 
-  // ── Core tables ─────────────────────────────────────────────────
   await sql`
     CREATE TABLE IF NOT EXISTS accounts (
       id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
@@ -61,7 +60,6 @@ export async function migrate(sql: any) {
     )
   `;
 
-  // ── Column migrations ──────────────────────────────────────────
   await sql`ALTER TABLE pings ADD COLUMN IF NOT EXISTS scheduled_at TIMESTAMPTZ`;
   await sql`ALTER TABLE pings ADD COLUMN IF NOT EXISTS jitter_ms INTEGER`;
   await sql`ALTER TABLE monitors ADD COLUMN IF NOT EXISTS regions TEXT[] NOT NULL DEFAULT '{}'`;
@@ -71,11 +69,9 @@ export async function migrate(sql: any) {
   await sql`ALTER TABLE accounts ADD COLUMN IF NOT EXISTS plan_expires_at TIMESTAMPTZ`;
   await sql`ALTER TABLE accounts ADD COLUMN IF NOT EXISTS plan_stack JSONB NOT NULL DEFAULT '[]'`;
 
-  // ── Indexes ────────────────────────────────────────────────────
   await sql`CREATE INDEX IF NOT EXISTS idx_pings_monitor ON pings(monitor_id, checked_at DESC)`;
   await sql`CREATE INDEX IF NOT EXISTS idx_pings_checked_at ON pings(checked_at)`;
 
-  // ── Payment tables ─────────────────────────────────────────────
   await sql`
     CREATE TABLE IF NOT EXISTS payments (
       id                BIGSERIAL PRIMARY KEY,

apps/shared/plans.ts

@@ -1,4 +1,3 @@
-// ── Types ─────────────────────────────────────────────────────────
 export type Plan = "free" | "pro" | "pro2x" | "pro4x" | "lifetime";
 
 export interface PlanLimits {
@@ -7,7 +6,6 @@ export interface PlanLimits {
   maxRegions: number;
 }
 
-// ── Limits ────────────────────────────────────────────────────────
 const PLAN_LIMITS: Record<Plan, PlanLimits> = {
   free:     { maxMonitors: 10,  minIntervalS: 30, maxRegions: 1 },
   pro:      { maxMonitors: 200, minIntervalS: 5,  maxRegions: 99 },
@@ -20,12 +18,10 @@ export function getPlanLimits(plan: string): PlanLimits {
   return PLAN_LIMITS[plan as Plan] || PLAN_LIMITS.free;
 }
 
-// ── Display ───────────────────────────────────────────────────────
 export const PLAN_LABELS: Record<string, string> = {
   free: "Free", pro: "Pro", pro2x: "Pro 2x", pro4x: "Pro 4x", lifetime: "Lifetime",
 };
 
-// ── Pricing ───────────────────────────────────────────────────────
 export const PRO_MONTHLY_USD = 12;
 export const LIFETIME_USD = 140;
 
@@ -45,7 +41,6 @@ export const COINS: Record<string, { label: string; ticker: string; confirmation
   xec:  { label: "eCash",        ticker: "XEC",  confirmations: 0, uri: "ecash" },
 };
 
-// ── Tier ranking (for plan stacking) ──────────────────────────────
 const PLAN_RANK: Record<string, number> = {
   free: 0, pro: 1, lifetime: 1, pro2x: 2, pro4x: 3,
 };
@@ -54,7 +49,6 @@ export function planTier(plan: string): number {
   return PLAN_RANK[plan] ?? 0;
 }
 
-// ── Regions ───────────────────────────────────────────────────────
 export const REGION_COLORS: Record<string, string> = {
   "eu-central": "#3b82f6",
   "us-west": "#f59e0b",