v0.2.0 - Token Profiler

What's New

• ctxfold --profile — analyze any input: where the characters go
  (keys/syntax/values/whitespace, affixes/constants, template boilerplate)
  and what folding would save, without transforming anything
• Programmatic API: profile(text, opts) returns structured data;
  renderProfile() produces the text report
• When nothing folds, the profiler explains why (quoted CSV, nested JSON,
  too few records, prose) instead of silently no-opping
• examples/profile-demo.js — zero-setup demo, no API key required
• 14 new invariant tests (42 total): composition sums exactly to input size,
  profiler ratios always equal compress()'s, honesty flags enforced per format

Details

The profiler makes the same claims the benchmark table does, enforced by
tests: composition is character-exact, foldable figures come from actually
running the encoder, and readability claims mirror measured results — JSON
and logs validated direct-readable, CSV flagged pipeline-only.

First minor version: new capability, no changes to the existing
compress/decompress/validate API.