agents: deduplicate timestamps, plan expansion, rename agent

- Add compact_timestamp() to store — replaces 5 copies of
  format_datetime(now_epoch()).replace([':', '-', 'T'], "")
  Also fixes missing seconds (format_datetime only had HH:MM).

- Add ConsolidationPlan::to_agent_runs() — replaces identical
  plan-to-runs-list expansion in consolidate.rs and daemon.rs.

- Port job_rename_agent to use run_one_agent — eliminates manual
  prompt building, LLM call, report storage, and visit recording
  that duplicated the shared pipeline.

- Rename Confidence::weight()/value() to delta_weight()/gate_value()
  to clarify the distinction (delta metrics vs depth gating).

poc-memory/src/agents/consolidate.rs

@@ -35,8 +35,7 @@ pub fn consolidate_full_with_progress(
     on_progress: &dyn Fn(&str),
 ) -> Result<(), String> {
     let start = std::time::Instant::now();
-    let log_key = format!("_consolidate-log-{}",
-        store::format_datetime(store::now_epoch()).replace([':', '-', 'T'], ""));
+    let log_key = format!("_consolidate-log-{}", store::compact_timestamp());
     let mut log_buf = String::new();
 
     log_line(&mut log_buf, "=== CONSOLIDATE FULL ===");
@@ -64,25 +63,8 @@ pub fn consolidate_full_with_progress(
     let mut total_applied = 0usize;
     let mut total_actions = 0usize;
 
-    // Build the list of (agent_type, batch_size) runs
-    let mut runs: Vec<(&str, usize)> = Vec::new();
-    if plan.run_health {
-        runs.push(("health", 0));
-    }
     let batch_size = 5;
-    for (name, count) in [
-        ("replay", plan.replay_count),
-        ("linker", plan.linker_count),
-        ("separator", plan.separator_count),
-        ("transfer", plan.transfer_count),
-    ] {
-        let mut remaining = count;
-        while remaining > 0 {
-            let batch = remaining.min(batch_size);
-            runs.push((name, batch));
-            remaining -= batch;
-        }
-    }
+    let runs = plan.to_agent_runs(batch_size);
 
     for (agent_type, count) in &runs {
         agent_num += 1;
@@ -112,8 +94,7 @@ pub fn consolidate_full_with_progress(
             }
         };
 
-        let ts = store::format_datetime(store::now_epoch())
-            .replace([':', '-', 'T'], "");
+        let ts = store::compact_timestamp();
         let mut applied = 0;
         for action in &result.actions {
             if knowledge::apply_action(store, action, agent_type, &ts, 0) {