Remove ContextSource::File — all identity in store now

Identity files migrated to memory nodes:
- identity, core-personality, reflections, where-am-i

Removed:
- ContextSource::File enum variant
- File source parsing and handling
- load_memory_file helper function

Config now only supports Store and Journal sources.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>

src/cli/node.rs

@@ -190,13 +190,6 @@ pub async fn get_group_content(group: &crate::config::ContextGroup, cfg: &crate:
             }
             results
         }
-        crate::config::ContextSource::File => {
-            group.keys.iter().filter_map(|key| {
-                let content = std::fs::read_to_string(cfg.identity_dir.join(key)).ok()?;
-                if content.trim().is_empty() { return None; }
-                Some((key.clone(), content.trim().to_string()))
-            }).collect()
-        }
         crate::config::ContextSource::Store => {
             let mut results = Vec::new();
             for key in &group.keys {

src/config.rs

@@ -36,7 +36,6 @@ pub enum ContextSource {
     #[serde(alias = "")]
     #[default]
     Store,
-    File,
     Journal,
 }
 
@@ -320,7 +319,6 @@ impl Config {
                     .unwrap_or_default();
 
                 let source = match obj.get("source").and_then(|v| v.as_str()) {
-                    Some("file") => ContextSource::File,
                     Some("journal") => ContextSource::Journal,
                     _ => ContextSource::Store,
                 };

src/mind/identity.rs

@@ -15,12 +15,6 @@ fn read_nonempty(path: &Path) -> Option<String> {
     std::fs::read_to_string(path).ok().filter(|s| !s.trim().is_empty())
 }
 
-/// Try project dir first, then global.
-fn load_memory_file(name: &str, project: Option<&Path>, global: &Path) -> Option<String> {
-    project.and_then(|p| read_nonempty(&p.join(name)))
-        .or_else(|| read_nonempty(&global.join(name)))
-}
-
 /// Walk from cwd to git root collecting instruction files (CLAUDE.md / POC.md).
 ///
 /// On Anthropic models, loads CLAUDE.md. On other models, prefers POC.md
@@ -67,19 +61,13 @@ fn find_context_files(cwd: &Path, prompt_file: &str) -> Vec<PathBuf> {
 }
 
 /// Load memory files from config's context_groups.
-/// For file sources, checks:
-///   1. ~/.consciousness/config/ (primary config dir)
-///   2. Project dir (if set)
-///   3. Global (~/.consciousness/)
-/// For journal source, loads recent journal entries.
+/// Store sources load from the memory graph. Journal source loads recent entries.
 async fn load_memory_files(memory_project: Option<&Path>, context_groups: &[ContextGroup]) -> Vec<(String, String)> {
     let home = match dirs::home_dir() {
         Some(h) => h,
         None => return Vec::new(),
     };
 
-    // Primary config directory
-    let config_dir = home.join(".consciousness/identity");
     let global = home.join(".consciousness");
     let project = memory_project.map(PathBuf::from);
 
@@ -102,16 +90,6 @@ async fn load_memory_files(memory_project: Option<&Path>, context_groups: &[Cont
                     }
                 }
             }
-            ContextSource::File => {
-                for key in &group.keys {
-                    let filename = if key.ends_with(".md") { key.clone() } else { format!("{}.md", key) };
-                    if let Some(content) = read_nonempty(&config_dir.join(&filename)) {
-                        memories.push((key.clone(), content));
-                    } else if let Some(content) = load_memory_file(&filename, project.as_deref(), &global) {
-                        memories.push((key.clone(), content));
-                    }
-                }
-            }
         }
     }