docs: remove stale source-build notices

docs/getting_started.md

@@ -79,8 +79,6 @@ The Rust server reads an explicit TOML file.
 
 Create `routes.toml` with an auto route:
 
-> Requires unreleased features. [Build from source](#build-from-source) to run this example.
-
 ```toml
 schema_version = 1
 

docs/routing_algorithms/llm_classifier_routing.md

@@ -13,8 +13,6 @@ This example uses the packaged classifier prompt as intended: it estimates
 whether the weak target can complete the task, and keeps the first routing
 decision for later requests in the same conversation.
 
-> Requires unreleased features. [Build from source](../getting_started.md#build-from-source) to run this example.
-
 ```toml
 schema_version = 1
 

docs/routing_algorithms/overview.md

@@ -31,8 +31,6 @@ with `picker = "efficient_first"`, `confidence_threshold = 0.5`, and no LLM
 judge. It does not compare strategies at runtime. Use `stage_router` directly
 to tune these settings.
 
-> Auto requires a [source build](../getting_started.md#build-from-source) until v0.3.0 is published.
-
 See the [Auto configuration reference](../reference/toml_schema.md#auto) for
 the required targets.
 

docs/routing_algorithms/subagent_routing.md

@@ -5,8 +5,6 @@ algorithm while routing delegated sub-agent work separately. It is available on
 `passthrough`, `stage_router`, and `composite` routes through the optional
 `subagents` table.
 
-> Requires unreleased features. [Build from source](../getting_started.md#build-from-source) to run this example.
-
 ```toml
 schema_version = 1