refactor(cli): migrate all command modules from console::style to Theme

Replace all console::style() calls in command modules with the centralized
Theme API and render:: utility functions. This ensures consistent color
behavior across the entire CLI, proper NO_COLOR/--color never support via
the LoreRenderer singleton, and eliminates duplicated formatting code.

Changes per module:

- count.rs: Theme for table headers, render::format_number replacing local
  duplicate. Removed local format_number implementation.
- doctor.rs: Theme::success/warning/error for check status symbols and
  messages. Unicode escapes for check/warning/cross symbols.
- drift.rs: Theme::bold/error/success for drift detection headers and
  status messages.
- embed.rs: Compact output format — headline with count, zero-suppressed
  detail lines, 'nothing to embed' short-circuit for no-op runs.
- generate_docs.rs: Same compact pattern — headline + detail + hint for
  next step. No-op short-circuit when regenerated==0.
- ingest.rs: Theme for project summaries, sync status, dry-run preview.
  All console::style -> Theme replacements.
- list.rs: Replace comfy-table with render::LoreTable for issue/MR listing.
  Remove local colored_cell, colored_cell_hex, format_relative_time,
  truncate_with_ellipsis, and format_labels (all moved to render.rs).
- list_tests.rs: Update test assertions to use render:: functions.
- search.rs: Add render_snippet() for FTS5 <mark> tag highlighting via
  Theme::bold().underline(). Compact result layout with type badges.
- show.rs: Theme for entity detail views, delegate format_date and
  wrap_text to render module.
- stats.rs: Section-based layout using render::section_divider. Compact
  middle-dot format for document counts. Color-coded embedding coverage
  percentage (green >=95%, yellow >=50%, red <50%).
- sync.rs: Compact sync summary — headline with counts and elapsed time,
  zero-suppressed detail lines, visually prominent error-only section.
- sync_status.rs: Theme for run history headers, removed local
  format_number duplicate.
- timeline.rs: Theme for headers/footers, render:: for date/truncate,
  standard format! padding replacing console::pad_str.
- who.rs: Theme for all expert/workload/active/overlap/review output
  modes, render:: for relative time and truncation.

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

src/cli/commands/doctor.rs

@@ -1,4 +1,4 @@
-use console::style;
+use crate::cli::render::Theme;
 use serde::Serialize;
 
 use crate::core::config::Config;
@@ -544,32 +544,33 @@ pub fn print_doctor_results(result: &DoctorResult) {
     if result.success {
         let ollama_ok = result.checks.ollama.result.status == CheckStatus::Ok;
         if ollama_ok {
-            println!("{}", style("Status: Ready").green());
+            println!("{}", Theme::success().render("Status: Ready"));
         } else {
             println!(
                 "{} {}",
-                style("Status: Ready").green(),
-                style("(lexical search available, semantic search requires Ollama)").yellow()
+                Theme::success().render("Status: Ready"),
+                Theme::warning()
+                    .render("(lexical search available, semantic search requires Ollama)")
             );
         }
     } else {
-        println!("{}", style("Status: Not ready").red());
+        println!("{}", Theme::error().render("Status: Not ready"));
     }
     println!();
 }
 
 fn print_check(name: &str, result: &CheckResult) {
     let symbol = match result.status {
-        CheckStatus::Ok => style("✓").green(),
-        CheckStatus::Warning => style("⚠").yellow(),
-        CheckStatus::Error => style("✗").red(),
+        CheckStatus::Ok => Theme::success().render("\u{2713}"),
+        CheckStatus::Warning => Theme::warning().render("\u{26a0}"),
+        CheckStatus::Error => Theme::error().render("\u{2717}"),
     };
 
     let message = result.message.as_deref().unwrap_or("");
     let message_styled = match result.status {
         CheckStatus::Ok => message.to_string(),
-        CheckStatus::Warning => style(message).yellow().to_string(),
-        CheckStatus::Error => style(message).red().to_string(),
+        CheckStatus::Warning => Theme::warning().render(message),
+        CheckStatus::Error => Theme::error().render(message),
     };
 
     println!("  {symbol} {:<10} {message_styled}", name);