Atmosphere 4.0.67

Fixed

• make the vector store opt-in so keyless retrieval keeps its provider An empty store becomes the retrieval source and starves the demo path — the rag-chat-commands e2e caught it.
• scrub SPRING_AI_* and read warnings from binary sample logs Relaxed binding let an ambient SPRING_AI_OPENAI_BASE_URL redirect samples off the keyless-local backend.
• reject flag-shaped project names and unknown checkpoint options atmosphere new --list-templates scaffolded a directory named after the flag; checkpoint silently ignored --url.
• build the vector store so retrieval is actually grounded Un-exclude OpenAiEmbeddingAutoConfiguration and gate the bean on a property, not @ConditionalOnBean.
• treat unreachable container daemon as engine unavailable

Changed

• allowlist ConditionalOnBean/ConditionalOnProperty doc symbols Sibling Spring conditions were already listed; these two were missing.
• document the transport headers replay requires A bare curl returns 200 with an empty body because reattach only runs for WS/SSE/long-polling.
• unwire mcp-client spec until its build moves out of the hook
• stop dependabot rewriting the maven wrapper
• hold the Maven wrapper on 3.x in dependabot
• bump Embabel to 1.5.0 and MCP Java SDK to 2.0.0
• bump Spring Boot 4.0.7 to 4.1.0
• bump org.jetbrains.kotlinx:kotlinx-serialization-core-jvm (#2748)
• bump every version-bearing file in one commit
• prepare next development version 5.0.42
• bump version to 4.0.66
• prepare for next development iteration 4.0.67-SNAPSHOT