feat(analysis): bind Rubin loading uncertainty to an analysis-run profile

CHANGELOG.md

@@ -38,6 +38,7 @@ All notable changes to TEPP are documented here. The format follows Keep a Chang
 
 ## [Unreleased]
 
+- `analysis_engine` jointly binds posterior-draw OLS loading means (`recover_loading_point_estimate_mean`) and Rubin (1996) total variance (`combine_draw_level_ols_loadings`) to the `rubin_loading_uncertainty_v1` analysis-run output profile. Observations unavailable at the request cutoff are excluded; the digest-bound `tepp.rubin_loading_uncertainty.v1` artifact records the point-estimate mean and Rubin `Q̄`/`Ū`/`B`/`T` and refuses Mislevy person-level plausible-value claims. This is not a new ESEM/DSEM estimator, not CWC, not a Driver p.16 `std` restore, and not persistence.
 - Removed the repository-local hourly PR-maintenance caller now covered by the central required scheduler, retired stale workflow registrations, narrowed documentation triggers, keyed PR concurrency by fixed workflow name, repository, and pull-request number without cancelling non-PR runs, and combined line/branch coverage on one sequential runner while preserving both 100% gates and diagnostics.
 
 - `event_core` adds bounded Allen interval-consistency classification, atomic path-consistency closure, contradiction/resource refusals, and an explicit dependency-error fallback without claiming unrestricted global satisfiability.

crates/analysis_engine/Cargo.toml

@@ -15,6 +15,7 @@ publish = false
 
 [dependencies]
 event_core = { path = "../event_core", version = "0.2.0" }
+psychometric_core = { path = "../psychometric_core", version = "0.2.0" }
 serde = { workspace = true }
 serde_json = { workspace = true }
 sha2 = { workspace = true }

crates/analysis_engine/src/lib.rs

@@ -8,13 +8,17 @@
 //! through [`tepp_api`]. It deliberately does not claim latent-variable or topic
 //! estimation authority; those estimators remain separate scientific crates.
 //! estimation authority; it invokes estimators through their scientific crate
-//! contracts and preserves their artifact meaning.
+//! contracts and preserves their artifact meaning. Rubin loading uncertainty
+//! is invoked through [`psychometric_core`] and is not Mislevy person-level
+//! plausible-value pooling.
 
 mod case_deletion_refit;
 mod lineage_criterion;
+mod rubin_loading_artifact;
 mod topic_context_posterior;
 mod topic_lineage_artifact;
 
+use psychometric_core::PsychometricError;
 use serde::Serialize;
 use sha2::{Digest, Sha256};
 use std::collections::BTreeSet;
@@ -46,6 +50,13 @@ pub use lineage_criterion::{
     LineageCriterionFit, LineageCriterionFitError, LineageCriterionObservation,
     fit_lineage_criterion_posteriors,
 };
+/// Rubin loading-uncertainty artifact and execution contracts.
+pub use rubin_loading_artifact::{
+    RUBIN_LOADING_ARTIFACT_BYTE_LIMIT, RUBIN_LOADING_ARTIFACT_SCHEMA_VERSION,
+    RUBIN_LOADING_MODEL_CONTRACT_VERSION, RUBIN_LOADING_OUTPUT_PROFILE, RubinLoadingObservation,
+    RubinLoadingUncertaintyArtifact, RubinLoadingUncertaintyExecution,
+    execute_rubin_loading_uncertainty_run,
+};
 /// Bounded posterior topic-context producer contract and record types.
 pub use topic_context_posterior::{
     TOPIC_CONTEXT_POSTERIOR_BYTE_LIMIT, TOPIC_CONTEXT_POSTERIOR_SCHEMA_VERSION,
@@ -248,6 +259,10 @@ pub enum AnalysisEngineError {
     TopicMeasurement(TopicMeasurementError),
     /// A topic-lineage artifact violated its bounded schema or count invariants.
     InvalidTopicLineageArtifact,
+    /// A psychometric recovery rejected the offered coordinates.
+    Psychometric(PsychometricError),
+    /// A Rubin loading-uncertainty artifact violated its bounded schema.
+    InvalidRubinLoadingUncertaintyArtifact,
 }
 
 impl fmt::Display for AnalysisEngineError {
@@ -262,6 +277,10 @@ impl fmt::Display for AnalysisEngineError {
             Self::LimitExceeded => "analysis corpus exceeded its execution bound",
             Self::TopicMeasurement(error) => return error.fmt(formatter),
             Self::InvalidTopicLineageArtifact => "invalid topic lineage artifact",
+            Self::Psychometric(error) => return error.fmt(formatter),
+            Self::InvalidRubinLoadingUncertaintyArtifact => {
+                "invalid Rubin loading-uncertainty artifact"
+            }
         };
         formatter.write_str(message)
     }
@@ -281,6 +300,12 @@ impl From<TopicMeasurementError> for AnalysisEngineError {
     }
 }
 
+impl From<PsychometricError> for AnalysisEngineError {
+    fn from(error: PsychometricError) -> Self {
+        Self::Psychometric(error)
+    }
+}
+
 /// Execute the cutoff-safe temporal evidence readiness analysis.
 ///
 /// Evidence whose `available_time` is later than the request cutoff is excluded
@@ -415,6 +440,7 @@ mod tests {
         AnalysisEngineError, AnalysisEvidenceUnit, MAX_ANALYSIS_IDENTIFIER_BYTES,
         MAX_EVIDENCE_UNITS, TopicMeasurementError, add_membership_count, execute_analysis_run,
     };
+    use psychometric_core::PsychometricError;
     use temporal_core::{AvailableTime, EventTime};
     use tepp_api::{AnalysisRunAccepted, AnalysisRunRequest, AnalysisRunTerminalState, ApiError};
 
@@ -681,6 +707,14 @@ mod tests {
                 AnalysisEngineError::InvalidTopicLineageArtifact,
                 "invalid topic lineage artifact",
             ),
+            (
+                AnalysisEngineError::Psychometric(PsychometricError::InsufficientDraws),
+                "Rubin total variance requires at least two complete-data draws",
+            ),
+            (
+                AnalysisEngineError::InvalidRubinLoadingUncertaintyArtifact,
+                "invalid Rubin loading-uncertainty artifact",
+            ),
         ];
         for (error, message) in messages {
             assert_eq!(error.to_string(), message);
@@ -689,6 +723,11 @@ mod tests {
         assert_eq!(converted.to_string(), "invalid API wire payload");
         let from_topic: AnalysisEngineError = TopicMeasurementError::DidNotConverge.into();
         assert_eq!(from_topic.to_string(), "topic estimator did not converge");
+        let from_psych: AnalysisEngineError = PsychometricError::InsufficientDraws.into();
+        assert_eq!(
+            from_psych.to_string(),
+            "Rubin total variance requires at least two complete-data draws"
+        );
         assert_eq!(
             add_membership_count(u64::MAX, 1),
             Err(AnalysisEngineError::ArithmeticOverflow)