v3.15.0

• dsh: the vision wrap discovers every eligible provider route (#29). The wrapper used to bind one hardcoded upstream, so a machine with several subscription packages (opencode-go, zai, ...) had to hand-pick a single route and lose the rest. With upstream unset the plugin now sweeps the llm registry and registers a modlens-<provider> wrapper for every route carrying wrappable text-only DeepSeek/GLM models, re-sweeping on the registry's own llm/adapters-updated notification so late-registering routes (llm-pi-ai mounts after settings load) are picked up without polling. A discover array narrows the set, families filters as before, setting upstream keeps exact legacy single-route behavior, wrappers never wrap themselves, and the deepseek-official wrap keeps its historical deepseek-modlens id so an upgraded machine's model selection survives. Design and behavior spec contributed by @zlycode01, who also published a reference implementation in a public fork; this is an independent upstream implementation of that spec, with the polling schedule replaced by the registry notification.