docs(bf-1pwz): complete bot language and purpose analysis for all 21 bots

- Read each bot's entry point file to determine programming language
- Inferred purpose from code structure and comments
- Created annotated table with all 21 bots
- Language distribution: Rust(4), Java(3), Python(4), Go(4), TypeScript(2), JavaScript(2), C#(1), PHP(1)

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

notes/bf-1pwz.md

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+# Bot Language and Purpose Analysis
+
+## All 21 Bots Annotated
+
+| Bot Name | Language | Purpose |
+|----------|----------|---------|
+| **assassin** | Rust | Decapitation archetype - all units rush the enemy core directly, ignoring enemy units and economy |
+| **coordinator** | TypeScript | Dynamic role allocation - assigns each bot a role (Attacker/Harvester/Defender/Scout) each turn, rebalancing based on game state |
+| **defender** | C# | Core-hugging perimeter defense - bots patrol evenly-spaced slots around nearest active core and intercept enemies entering perimeter |
+| **economist** | Python | Energy starvation through node contesting - deliberately contests energy nodes enemies are approaching (destroying energy) while harvesting uncontested nodes |
+| **farmer** | Go | Energy collection and farming strategy |
+| **gatherer** | Go | Maximizes energy collection while avoiding combat |
+| **guardian** | PHP | Defensive core protection with cautious expansion - maintains perimeter bots within 5 tiles of each owned core |
+| **hunter** | Java | Targets isolated enemies for efficient kills - sends pairs of bots to intercept isolated enemies (≥4 tiles from friendly support), defaults to gathering when no isolated targets |
+| **kamikaze** | JavaScript | Aggressive attacker that finds and attacks nearest enemy |
+| **leader-targeter** | Java | In N>2 games, always directs all units toward current score leader (kingmaker dynamic); in 2-player games, falls back to straight aggressor |
+| **nomad** | Python | Constant relocation archetype - picks target region every ~20 turns, migrates all units toward it, briefly engages on arrival, then picks new region |
+| **opportunist** | Go | Opportunistic strategy taking advantage of tactical opportunities |
+| **pacifist** | JavaScript | Pure evasion, never attacks - moves to maximize distance from nearest enemy, retreats toward own core if cornered |
+| **phalanx** | Rust | Tight formation archetype - all units move as coordinated group, maximizing local firepower at cost of map coverage |
+| **raider** | Java | Hit-and-run harassment - scouts lone enemy bots, attacks from flank for 1-2 turns, then retreats; never attacks groups of ≥3 enemies |
+| **random** | Python | Makes random valid moves - reference implementation demonstrating HTTP protocol |
+| **rusher** | Rust | Rushes enemy cores aggressively using BFS pathfinding, ignoring energy and enemy bots unless they block path |
+| **scout** | Python | Exploration-maximizing - maintains last-seen tick counter per cell, moves toward stalest unobserved cells, multiple bots assigned different map zones |
+| **siege** | Go | Blocks enemy core spawning by surrounding cores |
+| **swarm** | TypeScript | Formation-based combat strategy |
+| **zone-driver** | Rust | Weaponizes the shrinking zone - positions units to block enemy escape routes inward, herds enemies toward zone edge for passive eliminations |
+
+## Language Distribution
+
+- **Rust**: 4 bots (assassin, phalanx, rusher, zone-driver)
+- **Java**: 3 bots (hunter, leader-targeter, raider)
+- **Python**: 4 bots (economist, nomad, random, scout)
+- **Go**: 4 bots (farmer, gatherer, opportunist, siege)
+- **TypeScript**: 2 bots (coordinator, swarm)
+- **JavaScript**: 2 bots (kamikaze, pacifist)
+- **C#**: 1 bot (defender)
+- **PHP**: 1 bot (guardian)
+
+**Total: 21 bots**