v0.1.2

Critical

• Fix server lifespan not connected — app_lifespan was assigned to a non-existent _lifespan_handler attribute on FastMCP, making the entire server non-functional when run via CLI. Now passed via the lifespan= constructor kwarg.
• Propagate upstream isError flag — upstream tool errors were silently converted to success responses. Now raises ToolError so isError=true is preserved in the proxied response.

Fixes

• Fix _surfaced_ids set pruning modifying a set during iteration (potential RuntimeError on CPython 3.12+)
• Fix _parse_results regex splitting on --- inside content (YAML frontmatter, markdown HR)
• Fix _parse_scratch_list truncating keys containing :
• Record metrics for non-text-only responses (images, embedded resources)
• Pass original arguments (with _context_query) to surfacing on cache hit
• Snapshot config once per request to prevent intra-request inconsistency from hot-reload
• Guard against double start() leaking connections
• Normalize \r\n and \r to \n in content cleaning
• NFKC-normalize text before injection pattern matching (Unicode confusable bypass)
• Add CJK sentence-end punctuation (。！？) for better East Asian truncation
• Widen UUID-based IDs from 48 bits to 64 bits to reduce collision probability
• Add ProxyCache.stats() thread-safety lock
• Wrap _fastmcp_compat private API access in try/except for MCP SDK resilience
• Move feedback_tracker creation inside mcp_adapter success guard

Docs

• Add stm_proxy_health tool to docs (tool count 6 → 7)
• Remove selective from auto-selection flowchart (never returned by auto_select_strategy)

Testing

• 800 automated tests (up from 767)

Full Changelog: v0.1.1...v0.1.2