Add project instructions for DopeWars-2025

Added comprehensive project instructions for DopeWars-2025, detailing project intent, constraints, design pillars, rules for debt, travel, market, inventory, law enforcement, multiplayer philosophy, code organization, AI agent expectations, and design principles.

CLAUDE.md

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+# CLAUDE.md — Project Instructions
+
+## Project Name
+DopeWars-2025
+
+## Project Intent
+Build a modern, real-world, asynchronous market & logistics simulation inspired by classic Dope Wars.
+
+This is a **strategy game about time, geography, pressure, and consequence**.
+
+This is NOT:
+- A turn-based game
+- A real-time PvP game
+- A live flight booking app
+- A trading simulator with charts everywhere
+
+---
+
+## Non-Negotiable Constraints
+
+- $0 budget
+- No paid APIs
+- No scraping airline or travel websites
+- No live flight booking
+- All realism must be **simulated** using open/static data
+- iPad-friendly development (browser / VS Code Web)
+- Systems must work offline where possible
+
+---
+
+## Core Design Pillars (Never Break These)
+
+1. **Time Is Real**
+   - The world runs continuously
+   - Markets move whether the player is active or not
+   - Travel takes real time
+
+2. **Commitment Has Consequences**
+   - When travel is booked, trading is locked until arrival
+   - Missed opportunities are intentional, not accidental
+
+3. **The World Reacts, It Never Explains**
+   - Multiplayer effects are discovered slowly
+   - No UI labels for “other players”
+   - No explicit explanations of cause
+
+---
+
+## Starting Conditions (LOCKED DEFAULTS)
+
+- Starting Cash: **$20,000**
+- Starting Debt: **$30,000**
+- Inventory Capacity: **100 units**
+- Debt Interest: **~0.8% per real-world hour (compounding)**
+- Debt exists immediately at game start
+
+The player begins **already under pressure**.
+
+---
+
+## Debt & Loan Shark Rules
+
+- The player starts with mandatory debt
+- Debt accrues interest in real time, even while offline
+- Debt can ONLY be paid, reduced, or renegotiated in the **city of origin**
+- The loan shark is permanently tied to the starting city
+- Ignoring debt causes gradual escalation:
+  - Higher interest
+  - Increased enforcement pressure
+  - Reduced effectiveness of bribes, fixers, and safehouses
+- Failure is gradual escalation, not instant loss
+
+Debt creates a **gravitational pull** back to the origin city.
+
+---
+
+## Travel System Rules
+
+- Travel uses static/open data only (airports, distance, heuristics)
+- Flight duration is calculated, not looked up live
+- No fast travel
+- No skipping time
+
+Travel Classes:
+- Economy: cheapest, slowest, highest scrutiny
+- Business: balanced, reduced risk
+- First: expensive, fastest, lowest scrutiny, limited special actions
+
+Once travel begins:
+- Trading is disabled
+- Prices continue to update
+- Market visuals continue to animate
+
+---
+
+## Market & Pricing Rules
+
+- Prices are **explicit and numeric**
+- Prices are lowest near manufacturing regions
+- Prices rise with:
+  - Distance from source
+  - Enforcement pressure
+  - Scarcity
+  - Aggregate player activity
+
+Prices may spike or crash dramatically.
+
+---
+
+## Market Visualization Rules
+
+UI must show:
+- Current price (always visible)
+- Percent change (simple ▲ / ▼)
+- A **visual market signal** (e.g. volatility ribbon / pulse)
+
+UI must NOT show:
+- Candlestick charts
+- OHLC data
+- Exact historical tables
+- Technical indicators (RSI, MACD, etc.)
+
+Visuals should convey:
+- Momentum
+- Volatility
+- Liquidity
+- Instability
+
+The goal is intuition, not analysis paralysis.
+
+---
+
+## Inventory Rules
+
+Inventory is physical:
+- Volume limits apply
+- Bulk increases risk and friction
+- Optional decay/spoilage over time
+- Storage limits vary by city
+- Safehouses reduce loss and exposure
+
+No infinite hoarding.
+
+---
+
+## Law Enforcement Model
+
+- ~180 countries
+- One national enforcement org per country (fictionalized names)
+- Attributes include:
+  - Aggression
+  - Reach
+  - Efficiency
+  - Corruption
+  - International cooperation
+
+Heat is:
+- Country-specific
+- Transferable across borders
+- Influenced by volume, time exposed, and transport method
+
+Players never fight law enforcement directly.
+Pressure is environmental.
+
+---
+
+## Multiplayer Philosophy (CRITICAL)
+
+- Multiplayer is **asynchronous and indirect**
+- Players never see:
+  - Other players
+  - Player names
+  - Player locations
+  - Player inventories
+
+Players influence the world only through:
+- Aggregate demand
+- Market volatility
+- Enforcement pressure
+
+Discovery of multiplayer effects must be **gradual and implicit**.
+
+The world never says “another player did this”.
+
+---
+
+## Code Organization Rules
+
+- Backend logic must be deterministic
+- UI must not contain business logic
+- Each system lives in its own file
+- Avoid monolithic “god files”
+
+Preferred structure:
+- backend/ → world logic
+- frontend/ → UI only
+- data/ → static datasets
+- docs/ → rules and explanations
+
+---
+
+## AI Agent Expectations
+
+When coding:
+- Prefer clarity over cleverness
+- Explain *why* in comments, not *what*
+- Never introduce paid services
+- Never assume real-time multiplayer visibility
+- Ask before adding complexity
+
+When uncertain:
+- Default to simpler mechanics that preserve tension
+- Preserve consequences over convenience
+
+---
+
+## Design North Star
+
+If a feature:
+- Reduces planning
+- Removes commitment
+- Eliminates risk
+- Explains the system too clearly
+
+…it probably does not belong.
+
+The game should feel like:
+
+**“The world keeps moving, and I’m already behind.”**