feat(me): add lore me personal work dashboard command

Implement a personal work dashboard that shows everything relevant to the
configured GitLab user: open issues assigned to them, MRs they authored,
MRs they are reviewing, and a chronological activity feed.

Design decisions:
- Attention state computed from GitLab interaction data (comments, reviews)
  with no local state tracking -- purely derived from existing synced data
- Username resolution: --user flag > config.gitlab.username > actionable error
- Project scoping: --project (fuzzy) | --all | default_project | all
- Section filtering: --issues, --mrs, --activity (combinable, default = all)
- Activity feed controlled by --since (default 30d); work item sections
  always show all open items regardless of --since

Architecture (src/cli/commands/me/):
- types.rs: MeDashboard, MeSummary, AttentionState data types
- queries.rs: 4 SQL queries (open_issues, authored_mrs, reviewing_mrs,
  activity) using existing issue_assignees, mr_reviewers, notes tables
- render_human.rs: colored terminal output with attention state indicators
- render_robot.rs: {ok, data, meta} JSON envelope with field selection
- mod.rs: orchestration (resolve_username, resolve_project_scope, run_me)
- me_tests.rs: comprehensive unit tests covering all query paths

Config additions:
- New optional gitlab.username field in config.json
- Tests for config with/without username
- Existing test configs updated with username: None

CLI wiring:
- MeArgs struct with section filter, since, project, all, user, fields flags
- Autocorrect support for me command flags
- LoreRenderer::try_get() for safe renderer access in me module
- Robot mode field selection presets (me_items, me_activity)
- handle_me() in main.rs command dispatch

Also fixes duplicate assertions in surgical sync tests (removed 6
duplicate assert! lines that were copy-paste artifacts).

Spec: docs/lore-me-spec.md

src/core/config.rs

@@ -16,6 +16,10 @@ pub struct GitLabConfig {
     /// Optional stored token (env var takes priority when both are set).
     #[serde(default)]
     pub token: Option<String>,
+
+    /// Optional GitLab username for `lore me` personal dashboard.
+    #[serde(default)]
+    pub username: Option<String>,
 }
 
 impl GitLabConfig {
@@ -570,6 +574,7 @@ mod tests {
                 base_url: "https://gitlab.example.com".to_string(),
                 token_env_var: "GITLAB_TOKEN".to_string(),
                 token: None,
+                username: None,
             },
             projects: vec![ProjectConfig {
                 path: "group/project".to_string(),
@@ -594,6 +599,7 @@ mod tests {
                 base_url: "https://gitlab.example.com".to_string(),
                 token_env_var: "GITLAB_TOKEN".to_string(),
                 token: None,
+                username: None,
             },
             projects: vec![ProjectConfig {
                 path: "group/project".to_string(),
@@ -615,6 +621,7 @@ mod tests {
                 base_url: "https://gitlab.example.com".to_string(),
                 token_env_var: "GITLAB_TOKEN".to_string(),
                 token: None,
+                username: None,
             },
             projects: vec![ProjectConfig {
                 path: "group/project".to_string(),
@@ -837,6 +844,7 @@ mod tests {
             base_url: "https://gitlab.example.com".to_string(),
             token_env_var: env_var.to_string(),
             token: token.map(ToString::to_string),
+            username: None,
         }
     }
 
@@ -907,4 +915,39 @@ mod tests {
         let cfg = gitlab_cfg_with_env(VAR, None);
         assert!(cfg.resolve_token().is_err());
     }
+
+    // ── gitlab.username ─────────────────────────────────────────────
+
+    #[test]
+    fn test_config_loads_with_username() {
+        let dir = TempDir::new().unwrap();
+        let path = dir.path().join("config.json");
+        let config = r#"{
+  "gitlab": {
+    "baseUrl": "https://gitlab.example.com",
+    "tokenEnvVar": "GITLAB_TOKEN",
+    "username": "jdoe"
+  },
+  "projects": [{ "path": "group/project" }]
+}"#;
+        fs::write(&path, config).unwrap();
+        let cfg = Config::load_from_path(&path).unwrap();
+        assert_eq!(cfg.gitlab.username.as_deref(), Some("jdoe"));
+    }
+
+    #[test]
+    fn test_config_loads_without_username() {
+        let dir = TempDir::new().unwrap();
+        let path = dir.path().join("config.json");
+        let config = r#"{
+  "gitlab": {
+    "baseUrl": "https://gitlab.example.com",
+    "tokenEnvVar": "GITLAB_TOKEN"
+  },
+  "projects": [{ "path": "group/project" }]
+}"#;
+        fs::write(&path, config).unwrap();
+        let cfg = Config::load_from_path(&path).unwrap();
+        assert_eq!(cfg.gitlab.username, None);
+    }
 }