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/cli/mod.rs

@@ -261,6 +261,9 @@ pub enum Commands {
     /// People intelligence: experts, workload, active discussions, overlap
     Who(WhoArgs),
 
+    /// Personal work dashboard: open issues, authored/reviewing MRs, activity
+    Me(MeArgs),
+
     /// Show MRs that touched a file, with linked discussions
     #[command(name = "file-history")]
     FileHistory(FileHistoryArgs),
@@ -1050,6 +1053,57 @@ pub struct WhoArgs {
     pub all_history: bool,
 }
 
+#[derive(Parser)]
+#[command(after_help = "\x1b[1mExamples:\x1b[0m
+  lore me                                 # Full dashboard (default project or all)
+  lore me --issues                        # Issues section only
+  lore me --mrs                           # MRs section only
+  lore me --activity                      # Activity feed only
+  lore me --all                           # All synced projects
+  lore me --since 2d                      # Activity window (default: 30d)
+  lore me --project group/repo            # Scope to one project
+  lore me --user jdoe                     # Override configured username")]
+pub struct MeArgs {
+    /// Show open issues section
+    #[arg(long, help_heading = "Sections")]
+    pub issues: bool,
+
+    /// Show authored + reviewing MRs section
+    #[arg(long, help_heading = "Sections")]
+    pub mrs: bool,
+
+    /// Show activity feed section
+    #[arg(long, help_heading = "Sections")]
+    pub activity: bool,
+
+    /// Activity window (e.g. 7d, 2w, 30d). Default: 30d. Only affects activity section.
+    #[arg(long, help_heading = "Filters")]
+    pub since: Option<String>,
+
+    /// Scope to a project (supports fuzzy matching)
+    #[arg(short = 'p', long, help_heading = "Filters", conflicts_with = "all")]
+    pub project: Option<String>,
+
+    /// Show all synced projects (overrides default_project)
+    #[arg(long, help_heading = "Filters", conflicts_with = "project")]
+    pub all: bool,
+
+    /// Override configured username
+    #[arg(long = "user", help_heading = "Filters")]
+    pub user: Option<String>,
+
+    /// Select output fields (comma-separated, or 'minimal' preset)
+    #[arg(long, help_heading = "Output", value_delimiter = ',')]
+    pub fields: Option<Vec<String>>,
+}
+
+impl MeArgs {
+    /// Returns true if no section flags were passed (show all sections).
+    pub fn show_all_sections(&self) -> bool {
+        !self.issues && !self.mrs && !self.activity
+    }
+}
+
 #[derive(Parser)]
 #[command(after_help = "\x1b[1mExamples:\x1b[0m
   lore file-history src/main.rs                  # MRs that touched this file