feat(context,orchestration): wire PAACE lookahead from DAG into ContextAssemblyInput#4633
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…xtAssemblyInput Add `lookahead_tools(graph, depth)` to zeph-orchestration that performs a BFS from the Running/Ready frontier and returns `Vec<PlannedToolHint>` for the next `depth` scheduled tool calls. Cache the result in `OrchestrationState` and propagate it into `ContextAssemblyInput::planned_next_tools` at turn start, activating the FidelityScorer w_plan relevance signal. - zeph-orchestration: `lookahead_tools()` free function in dag.rs, BFS from frontier (frontier not emitted), full tool_name as first keyword, depth=0 fast-path, tracing span, 9 unit tests - zeph-config: `FidelityConfig.lookahead_depth` (default 3, range 0..=5) - zeph-core: `OrchestrationState.cached_lookahead` updated after each tick, cleared on loop exit; assembly.rs reads the cache instead of &[] - zeph-agent-context: service.rs second &[] site replaced with live hints - zeph-context: test fixtures updated, w_plan scoring test added Closes #4549
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…post Phase-2C rebase
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Summary
CAM Phase 2-A (#4549): wires the live orchestration DAG into
ContextAssemblyInput::planned_next_tools, activating the FidelityScorerw_planrelevance signal that was introduced in Phase 1 but always received&[].lookahead_tools(graph, depth) -> Vec<PlannedToolHint>— BFS from Running/Ready frontier (not emitted), returns downstream tool hints at distance 1..depth; full tool_name included as first keyword;depth=0= disabled fast-path;tracing::debug_span!instrumentedFidelityConfig.lookahead_depth(default 3, range 0..=5)OrchestrationState.cached_lookaheadupdated after eachscheduler.tick(), cleared on loop exit;assembly.rsreads cache instead of&[]&[]inservice.rsreplaced with live hintslookahead_depth: 3),w_planscoring test addedTest plan
cargo nextest run -p zeph-orchestration -p zeph-context -p zeph-agent-context -p zeph-config -p zeph-core --lib— 2626 passcargo clippy ... -- -D warningscleancargo +nightly fmt --checkcleanlookahead_tools(depth=0)→vec![], frontier not emitted,w_planproduces non-zero score for matching hintsFollow-up
PlannedToolHint.tool_name(#TBD)content_wordsHashSet once inplan_relevance()(#TBD)Closes #4549