Add motivational training challenges and shared club goals

docs/javascript-architecture.md

@@ -476,11 +476,14 @@ Owns:
 - daily summaries, controlled-lap streak, and recent personal-best gain
 - signed personal pace and consistency trends from the latest 30 laps versus the preceding 30, with a minimum of 10 laps in each window
 - derived automatic achievements for sessions, lap totals, training days, controlled streaks, and a completed five-minute result
+- derived optional daily missions for lap volume, controlled consecutive laps, and a completed five-minute stint
+- derived positive highlights for current activity, personal-best gain, pace, consistency, and endurance
 - active 30-minute pace buckets using a trimmed average and omitting empty clock periods
 - persisted class-specific setup markers and 30-minute before/after comparisons
 - extended stint analysis with normal pace, best 10-lap race pace, mistake count, consistency, and start/end change
 - rule-based practice recommendation selection
 - automatic and custom milestone progress calculation
+- shared club-goal progress from a persisted ledger baseline
 
 Rules:
 - only passings with a matching `driverId` are included
@@ -495,6 +498,8 @@ Rules:
 - consistency trend is `previous spread - current spread`, so a positive value means a smaller recent spread
 - trend fields remain neutral until both comparison windows contain at least 10 valid laps
 - achievements are derived on read and are not persisted; custom reward goals remain persisted in `state.training.goals`
+- daily missions and positive highlights are derived on read, reset by local calendar day, and remain isolated to the selected class
+- the shared club goal is persisted, but its progress is derived from `ledger.length - clubGoal.baselineLaps`
 - every save replaces ledger rows only for session IDs that still exist in `resultsBySession`
 - ledger rows for a deleted session are retained and become historical records
 - `sourceKey` deduplicates repeated saves of the same session passing
@@ -519,13 +524,16 @@ Owns:
 - mobile-responsive training markup
 - compact live-practice card and primary personal-profile action for the selected driver
 - personal trend and achievement cards that never combine classes
+- positive-credit and optional daily-challenge cards based on the selected driver's own development
 - recent club progress feed ordered by latest activity, without position numbers or cross-driver performance scoring
+- shared club-goal create, celebrate, replace, and delete actions in the overview
 - collapsed Extra statistics with pace heatmap, setup-marker actions, weekday pace, featured stints, and an expandable full stint table
 
 Mutations:
 - replaces or appends entries in `state.training.goals`
 - creates, rotates, enables, or disables entries in `state.training.shares`
 - creates and removes entries in `state.training.markers`
+- replaces or clears `state.training.clubGoal`
 - always calls injected `saveState()` before rerender
 
 Route behavior:
@@ -1767,7 +1775,8 @@ This bucket is the most dynamic part of state and is mutated heavily during live
   goals: TrainingGoal[],
   ledger: TrainingLap[],
   shares: TrainingShare[],
-  markers: TrainingMarker[]
+  markers: TrainingMarker[],
+  clubGoal: TrainingClubGoal | null
 }
 ```
 
@@ -1797,6 +1806,22 @@ This bucket is the most dynamic part of state and is mutated heavily during live
 }
 ```
 
+`TrainingClubGoal`:
+
+```js
+{
+  id: string,
+  title: string,
+  reward: string,
+  targetLaps: number,
+  baselineLaps: number, // ledger length when this club challenge starts
+  createdAt: string,
+  celebratedAt: string // empty until the reached goal is acknowledged
+}
+```
+
+Club-goal progress is intentionally aggregate-only. Creating a replacement goal captures the current ledger length as a new baseline; historical laps remain available for personal statistics but do not advance the new shared target.
+
 Share rules:
 - no share exists until an admin explicitly enables the selected personal profile
 - only one normalized share entry is retained per personal profile
@@ -1856,6 +1881,7 @@ Migration behavior:
 - the next `saveState()` imports valid registered-driver laps from all current session results
 - invalid laps, anonymous transponders, and laps at or below `500 ms` are excluded
 - older state without `training.markers` normalizes to an empty marker list
+- older state without `training.clubGoal` normalizes to `null`
 
 ## 15.9 `Settings`