refactor(cli): polish secondary commands with icons, number formatting, and section dividers

Phase 6 of the UX overhaul. Applies consistent visual treatment across
the remaining command outputs: stats, doctor, timeline, who, count,
and drift.

Stats (stats.rs):
- Apply render::format_number() to all numeric values (documents,
  FTS indexed, embedding counts, chunks) for thousand-separator
  formatting in large databases

Doctor (doctor.rs):
- Replace Unicode check/warning/cross symbols with Icons::success(),
  Icons::warning(), Icons::error() for glyph-mode awareness
- Add summary line after checks showing "Ready/Not ready" with counts
  of passed, warnings, and failed checks separated by middle dots
- Remove "lore doctor" title header for cleaner output

Count (count.rs):
- Right-align numeric values with {:>10} format for columnar output
  in count and state breakdown displays

Timeline (timeline.rs):
- Add entity icons (issue/MR) before entity references in event rows
- Refactor format_event_tag to pad plain text before applying style,
  preventing ANSI codes from breaking column alignment
- Extract style_padded() helper for width-then-style pattern

Who (who.rs):
- Add Icons::user() before usernames in expert, workload, reviews,
  and overlap displays
- Replace manual bold section headers with render::section_divider()
  in workload view (Assigned Issues, Authored MRs, Reviewing MRs,
  Unresolved Discussions)

Drift (drift.rs):
- Add Icons::error()/success() before drift detection status line
- Replace '#' bar character with Unicode full block for similarity
  curve visualization

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/commands/doctor.rs

@@ -1,4 +1,4 @@
-use crate::cli::render::Theme;
+use crate::cli::render::{Icons, Theme};
 use serde::Serialize;
 
 use crate::core::config::Config;
@@ -530,7 +530,7 @@ fn check_logging(config: Option<&Config>) -> LoggingCheck {
 }
 
 pub fn print_doctor_results(result: &DoctorResult) {
-    println!("\nlore doctor\n");
+    println!();
 
     print_check("Config", &result.checks.config.result);
     print_check("Database", &result.checks.database.result);
@@ -539,31 +539,53 @@ pub fn print_doctor_results(result: &DoctorResult) {
     print_check("Ollama", &result.checks.ollama.result);
     print_check("Logging", &result.checks.logging.result);
 
+    // Count statuses
+    let checks = [
+        &result.checks.config.result,
+        &result.checks.database.result,
+        &result.checks.gitlab.result,
+        &result.checks.projects.result,
+        &result.checks.ollama.result,
+        &result.checks.logging.result,
+    ];
+    let passed = checks
+        .iter()
+        .filter(|c| c.status == CheckStatus::Ok)
+        .count();
+    let warnings = checks
+        .iter()
+        .filter(|c| c.status == CheckStatus::Warning)
+        .count();
+    let failed = checks
+        .iter()
+        .filter(|c| c.status == CheckStatus::Error)
+        .count();
+
     println!();
 
+    let mut summary_parts = Vec::new();
     if result.success {
-        let ollama_ok = result.checks.ollama.result.status == CheckStatus::Ok;
-        if ollama_ok {
-            println!("{}", Theme::success().render("Status: Ready"));
-        } else {
-            println!(
-                "{} {}",
-                Theme::success().render("Status: Ready"),
-                Theme::warning()
-                    .render("(lexical search available, semantic search requires Ollama)")
-            );
-        }
+        summary_parts.push(Theme::success().render("Ready"));
     } else {
-        println!("{}", Theme::error().render("Status: Not ready"));
+        summary_parts.push(Theme::error().render("Not ready"));
     }
+    summary_parts.push(format!("{passed} passed"));
+    if warnings > 0 {
+        summary_parts.push(Theme::warning().render(&format!("{warnings} warning")));
+    }
+    if failed > 0 {
+        summary_parts.push(Theme::error().render(&format!("{failed} failed")));
+    }
+    println!("  {}", summary_parts.join("  \u{b7}  "));
+
     println!();
 }
 
 fn print_check(name: &str, result: &CheckResult) {
-    let symbol = match result.status {
-        CheckStatus::Ok => Theme::success().render("\u{2713}"),
-        CheckStatus::Warning => Theme::warning().render("\u{26a0}"),
-        CheckStatus::Error => Theme::error().render("\u{2717}"),
+    let icon = match result.status {
+        CheckStatus::Ok => Theme::success().render(Icons::success()),
+        CheckStatus::Warning => Theme::warning().render(Icons::warning()),
+        CheckStatus::Error => Theme::error().render(Icons::error()),
     };
 
     let message = result.message.as_deref().unwrap_or("");
@@ -573,5 +595,5 @@ fn print_check(name: &str, result: &CheckResult) {
         CheckStatus::Error => Theme::error().render(message),
     };
 
-    println!("  {symbol} {:<10} {message_styled}", name);
+    println!("  {icon}  {:<10} {message_styled}", name);
 }