Clean up unused imports, dead code, and compiler warnings

Remove unused StoreView imports, unused store imports, dead
install_default_file, dead make_report_slug, dead fact-mine/
experience-mine spawning loops in daemon. Fix mut warnings.
Zero compiler warnings now.

poc-memory/src/cli/admin.rs

@@ -11,7 +11,6 @@ fn install_default_file(data_dir: &std::path::Path, name: &str, content: &str) -
     Ok(())
 }
 
-use crate::store::StoreView;
 
 pub fn cmd_init() -> Result<(), String> {
     let cfg = crate::config::get();

poc-memory/src/cli/agent.rs

@@ -1,9 +1,7 @@
 // cli/agent.rs — agent subcommand handlers
 
 use crate::store;
-use crate::store::StoreView;
 use crate::agents::llm;
-use std::sync::atomic::{AtomicUsize, Ordering};
 
 pub fn cmd_run_agent(agent: &str, count: usize, target: &[String], dry_run: bool, debug: bool) -> Result<(), String> {
     if dry_run {

poc-memory/src/cli/graph.rs

@@ -6,7 +6,6 @@
 // trace, spectral-*, organize, interference.
 
 use crate::{store, graph, neuro, spectral};
-use crate::store::StoreView;
 
 pub fn cmd_graph() -> Result<(), String> {
     let store = store::Store::load()?;

poc-memory/src/cli/journal.rs

@@ -1,7 +1,5 @@
 // cli/journal.rs — journal subcommand handlers
 
-use crate::store;
-use crate::store::StoreView;
 
 pub fn cmd_tail(n: usize, full: bool) -> Result<(), String> {
     let path = crate::store::nodes_path();

poc-memory/src/cli/misc.rs

@@ -1,10 +1,7 @@
 // cli/misc.rs — misc subcommand handlers
 
-use crate::store;
-use crate::store::StoreView;
 
 pub fn cmd_search(terms: &[String], pipeline_args: &[String], expand: bool, full: bool, debug: bool, fuzzy: bool, content: bool) -> Result<(), String> {
-    use crate::store::StoreView;
     use std::collections::BTreeMap;
 
     // Parse pipeline stages (unified: algorithms, filters, transforms, generators)
@@ -71,6 +68,7 @@ pub fn cmd_search(terms: &[String], pipeline_args: &[String], expand: bool, full
         }
     } else {
         // Fast MmapView path — algorithm-only pipeline
+        use crate::store::StoreView;
         let view = crate::store::AnyView::load()?;
         let graph = crate::graph::build_graph_fast(&view);
 

poc-memory/src/cli/node.rs

@@ -5,7 +5,6 @@
 // dump-json, lookup-bump, lookups.
 
 use crate::store;
-use crate::store::StoreView;
 
 pub fn cmd_used(key: &[String]) -> Result<(), String> {
     if key.is_empty() {