Save computed forecast dry/wet on worksheet save; report reads saved values

Worksheet save now persists forecast_dry/forecast_wet per day to day_overrides
so the report page always shows the same totals the user saw on the worksheet,
rather than making a second independent forecasting API call that can return
slightly different values.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/src/db.js

@@ -60,6 +60,15 @@ export async function initDb() {
       occ_pct          DECIMAL(5,2)
     );
     CREATE INDEX IF NOT EXISTS idx_forecast_snapshots_session ON forecast_snapshots(session_id);
+  `)
+
+  // Add saved forecast columns — idempotent for existing deployments
+  await pool.query(`
+    ALTER TABLE day_overrides ADD COLUMN IF NOT EXISTS forecast_dry DECIMAL(12,2);
+    ALTER TABLE day_overrides ADD COLUMN IF NOT EXISTS forecast_wet DECIMAL(12,2);
+  `)
+
+  await pool.query(`
 
     CREATE TABLE IF NOT EXISTS app_settings (
       key        TEXT PRIMARY KEY,

backend/src/routes/directors-forecast.js

@@ -31,7 +31,7 @@ async function getSessionAndOverrides(year, month) {
   const session = sessionRes.rows[0]
 
   const overridesRes = await pool.query(
-    `SELECT date::text, pickup_rooms, pickup_avg_rate, dry_override, wet_override, actual_accomm
+    `SELECT date::text, pickup_rooms, pickup_avg_rate, dry_override, wet_override, actual_accomm, forecast_dry, forecast_wet
      FROM day_overrides WHERE session_id = $1`,
     [session.id]
   )
@@ -165,17 +165,20 @@ export async function directorsForecastRoutes(fastify) {
       for (const o of overrides) {
         if (!o.date) continue
         await pool.query(
-          `INSERT INTO day_overrides (session_id, date, pickup_rooms, pickup_avg_rate, dry_override, wet_override, actual_accomm)
+          `INSERT INTO day_overrides (session_id, date, pickup_rooms, pickup_avg_rate, dry_override, wet_override, actual_accomm, forecast_dry, forecast_wet)
-           VALUES ($1, $2, $3, $4, $5, $6, $7)
+           VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9)
            ON CONFLICT (session_id, date) DO UPDATE
              SET pickup_rooms    = EXCLUDED.pickup_rooms,
                  pickup_avg_rate = EXCLUDED.pickup_avg_rate,
                  dry_override    = EXCLUDED.dry_override,
                  wet_override    = EXCLUDED.wet_override,
-                 actual_accomm   = EXCLUDED.actual_accomm`,
+                 actual_accomm   = EXCLUDED.actual_accomm,
+                 forecast_dry    = EXCLUDED.forecast_dry,
+                 forecast_wet    = EXCLUDED.forecast_wet`,
           [session.id, o.date,
            o.pickup_rooms ?? null, o.pickup_avg_rate ?? null,
-           o.dry_override ?? null, o.wet_override ?? null, o.actual_accomm ?? null]
+           o.dry_override ?? null, o.wet_override ?? null, o.actual_accomm ?? null,
+           o.forecast_dry ?? null, o.forecast_wet ?? null]
         )
       }
     }
@@ -229,8 +232,12 @@ export async function directorsForecastRoutes(fastify) {
       const actualWet    = isPast ? (rev.wet?.otb   ?? null) : null
 
       const fAccomm = (isPast && actualAccomm != null) ? actualAccomm : otbNetRev + pickupRooms * dayRate
-      const fDry = ovr.dry_override != null ? parseFloat(ovr.dry_override) : (rev.dry?.forecast ?? 0)
+      const fDry = ovr.forecast_dry != null ? parseFloat(ovr.forecast_dry)
-      const fWet = ovr.wet_override != null ? parseFloat(ovr.wet_override) : (rev.wet?.forecast ?? 0)
+                 : ovr.dry_override != null ? parseFloat(ovr.dry_override)
+                 : (rev.dry?.forecast ?? 0)
+      const fWet = ovr.forecast_wet != null ? parseFloat(ovr.forecast_wet)
+                 : ovr.wet_override != null ? parseFloat(ovr.wet_override)
+                 : (rev.wet?.forecast ?? 0)
 
       totalAvailable  += available
       totalOtbRooms   += otbRooms

frontend/src/pages/DirectorsForecast.tsx

@@ -108,13 +108,19 @@ function WorksheetTab({ year, month, dowAlign }: { year: number; month: number;
     if (!canEdit) return
     setSaving(true)
     try {
-      const ovrList = Object.entries(overrides).map(([date, o]) => ({
+      const dayMap = new Map(data!.days.map(d => [d.date, d]))
+      const ovrList = Object.entries(overrides).map(([date, o]) => {
+        const computed = computedDay(dayMap.get(date)!)
+        return {
           date,
           pickup_rooms:    o.pickup_rooms    !== '' ? parseInt(o.pickup_rooms)       : null,
           pickup_avg_rate: o.pickup_avg_rate !== '' ? parseFloat(o.pickup_avg_rate)  : null,
           dry_override:    o.dry_override    !== '' ? parseFloat(o.dry_override)     : null,
           wet_override:    o.wet_override    !== '' ? parseFloat(o.wet_override)     : null,
-      }))
+          forecast_dry:    computed.dry,
+          forecast_wet:    computed.wet,
+        }
+      })
       await dfSaveWorksheet(year, month, { pickup_avg_rate: parseFloat(sessionRate) || 135, overrides: ovrList })
       setDirty(false)
       await load()