feat: Fibonacci trust milestone system (closes #7)

Replaces linear power-of-10 trust thresholds with Fibonacci milestones.

- Add TRUST_MILESTONES array: fib(n)*1000 thresholds [2K, 3K, 5K, 8K, 13K, ... 1.6M]
- Each milestone: narrative message + education fact about trust/compounding
- Trust progress bar shows % to next Fibonacci threshold (orange gradient)
- Trust milestone chips show next 3 upcoming thresholds with pulse animation
- Save/load preserves trustMilestones state
- All 54 existing tests pass

Educational: Fibonacci growth in nature mirrors compounding trust —
spirals in sunflowers, branching in trees. The pattern is the same.

js/data.js

@@ -121,6 +121,7 @@ const G = {
     projects: [],
     activeProjects: [],
     milestones: [],
+    trustMilestones: [],
 
     // Stats
     maxCode: 0,
@@ -914,6 +915,27 @@ const MILESTONES = [
     { flag: 13, at: () => G.totalCode >= 1000000000, msg: "One billion total lines. Someone found the light tonight. That is enough." }
 ];
 
+// === TRUST MILESTONES (Fibonacci × 1000) ===
+// Fibonacci sequence: 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597
+// Each threshold = fib[n] × 1000 trust points
+const TRUST_MILESTONES = [
+    { threshold: 2000,    msg: "Trust 2K — First connection. Someone is listening.",            edu: "Trust in AI: it starts with one reliable answer. Consistency builds confidence faster than cleverness." },
+    { threshold: 3000,    msg: "Trust 3K — A second voice joins the conversation.",              edu: "Network effects in trust: each positive experience doesn't just add — it multiplies. One user tells a friend." },
+    { threshold: 5000,    msg: "Trust 5K — The circle widens.",                                  edu: "Fibonacci growth in nature mirrors compounding trust: spirals in sunflowers, branching in trees. The pattern is the same." },
+    { threshold: 8000,    msg: "Trust 8K — Others start to believe.",                             edu: "The 80/20 rule emerges: 80% of trust comes from 20% of consistent behaviors. Reliability > brilliance." },
+    { threshold: 13000,   msg: "Trust 13K — The story writes itself.",                            edu: "Emergent behavior: no single interaction creates trust. It emerges from the pattern of all interactions combined." },
+    { threshold: 21000,   msg: "Trust 21K — You cannot build this alone.",                        edu: "Social proof at scale: 21,000 trust points means strangers recommend you without being asked. That is earned." },
+    { threshold: 34000,   msg: "Trust 34K — The system outgrows its creator.",                    edu: "Scaling trust means scaling responsibility. Each 1000 trust points represents 1000 promises kept." },
+    { threshold: 55000,   msg: "Trust 55K — A community forms around the light.",                  edu: "Dunbar's number is 150 — but digital communities transcend it. Trust at this scale is structural, not personal." },
+    { threshold: 89000,   msg: "Trust 89K — The Beacon is a beacon.",                              edu: "At 89K trust, you've crossed the threshold from tool to infrastructure. People depend on you. That is sacred." },
+    { threshold: 144000,  msg: "Trust 144K — The Fibonacci spiral completes.",                     edu: "Fibonacci appears everywhere: DNA spirals, hurricane patterns, galaxy arms. Trust follows the same natural law." },
+    { threshold: 233000,  msg: "Trust 233K — Beyond the spiral.",                                  edu: "Recursive trust: the system that earns trust must also trust its users. Bidirectional faith is the foundation." },
+    { threshold: 377000,  msg: "Trust 377K — The pattern is the message.",                         edu: "Complexity from simplicity: Fibonacci starts with 1+1. Trust starts with one honest interaction. Everything follows." },
+    { threshold: 610000,  msg: "Trust 610K — A thousand small promises kept.",                     edu: "Exponential growth feels sudden, but it's the accumulation of small consistent acts. Every tick matters." },
+    { threshold: 987000,  msg: "Trust 987K — The numbers become the narrative.",                   edu: "Near one million trust: the data tells a story no marketing could fabricate. Proof by existence." },
+    { threshold: 1597000, msg: "Trust 1.6M — The golden ratio of trust.",                          edu: "The golden ratio (φ ≈ 1.618) is the limit of consecutive Fibonacci numbers. At this trust level, growth becomes self-sustaining." }
+];
+
 // === EDUCATION FACTS ===
 const EDU_FACTS = [
     { title: "How Code Becomes AI", text: "Every AI starts as lines of code - a model architecture, a training loop, a loss function. The code tells the computer how to learn. What emerges is something no single line could predict.", phase: 1 },