fix(proxy): debug logging and header injection bugs

- route.ts debug check evaluated at import time before env var was set;
  now checks process.env.X402_PROXY_DEBUG per call
- claude command passes debug flag to startServeServer so proxy logs show
- injectPayerHeader keeps headers as plain Record<string,string> instead
  of converting to Headers instance (avoids mppx spreading bug)

Author: tenequm

packages/x402-proxy/CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.10.5] - 2026-04-01
+
+### Fixed
+- `--debug` flag now works with inference proxy - route.ts debug check was captured at import time (before `cli.ts` sets the env var), so `dbg()` never fired; now evaluates lazily per call
+- `--debug` on `claude` command now shows proxy logs (sets `quiet: false`)
+- MPP `X-Payer-Address` header injection preserves headers as plain objects instead of converting to `Headers` instance, avoiding mppx headers-spreading bug that silently drops `Content-Type` on SSE requests
+
 ## [0.10.4] - 2026-04-01
 
 ### Fixed
@@ -367,7 +374,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `appendHistory` / `readHistory` / `calcSpend` - JSONL transaction history
 - Re-exports from `@x402/fetch`, `@x402/svm`, `@x402/evm`
 
-[Unreleased]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.4...HEAD
+[Unreleased]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.5...HEAD
+[0.10.5]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.4...v0.10.5
 [0.10.4]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.3...v0.10.4
 [0.10.3]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.2...v0.10.3
 [0.10.2]: https://github.com/cascade-protocol/x402-proxy/compare/v0.10.1...v0.10.2

packages/x402-proxy/package.json

@@ -1,6 +1,6 @@
 {
   "name": "x402-proxy",
-  "version": "0.10.4",
+  "version": "0.10.5",
   "description": "curl for x402 paid APIs. Auto-pays any endpoint on Base, Solana, and Tempo. Also works as an OpenClaw plugin.",
   "type": "module",
   "sideEffects": false,