feat: MCPRetry — configurable retry policies with exponential backoff (jitter modes, per-key registry with LRU eviction, callbacks, JSON serialization) — 55 new tests, fix version sync — bump to v0.49.0

Author: quantumnic

README.md

@@ -33,7 +33,7 @@
 |---|:---:|:---:|:---:|
 | Runs on the MCU | ✅ | ✅ | ❌ CLI tool |
 | MCP spec compliant | ✅ 2025-11-25 | ❌ custom WS | ❌ |
-| Actually compiles | ✅ 1772 tests | ❌ self-described | N/A |
+| Actually compiles | ✅ 1827 tests | ❌ self-described | N/A |
 | Streamable HTTP + SSE | ✅ | ❌ | ❌ |
 | WebSocket transport | ✅ | ✅ | ❌ |
 | Claude Desktop bridge | ✅ | ❌ | ❌ |
@@ -58,6 +58,7 @@
 | Prometheus Metrics | ✅ | ❌ | ❌ |
 | Health Checks (component-level) | ✅ | ❌ | ❌ |
 | Circuit Breaker (fault tolerance) | ✅ | ❌ | ❌ |
+| Retry Policies (exponential backoff) | ✅ | ❌ | ❌ |
 | Captive Portal + Setup CLI | ✅ | ❌ | ❌ |
 | Hardware Abstraction Layer | ✅ | ❌ | ❌ |
 | Resource Subscriptions | ✅ | ❌ | ❌ |

library.json

@@ -1,6 +1,6 @@
 {
   "name": "mcpd",
-  "version": "0.48.0",
+  "version": "0.49.0",
   "description": "MCP Server SDK for Microcontrollers — Expose ESP32/RP2040/STM32 hardware as AI-accessible tools via Model Context Protocol",
   "keywords": [
     "mcp",

library.properties

@@ -1,5 +1,5 @@
 name=mcpd
-version=0.48.0
+version=0.49.0
 author=Nicola Spieser
 maintainer=Nicola Spieser <redbasecap-buiss@users.noreply.github.com>
 sentence=MCP Server SDK for Microcontrollers