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/list_tests.rs

@@ -1,47 +1,52 @@
 use super::*;
+use crate::cli::render;
+use crate::core::time::now_ms;
 
 #[test]
 fn truncate_leaves_short_strings_alone() {
-    assert_eq!(truncate_with_ellipsis("short", 10), "short");
+    assert_eq!(render::truncate("short", 10), "short");
 }
 
 #[test]
 fn truncate_adds_ellipsis_to_long_strings() {
     assert_eq!(
-        truncate_with_ellipsis("this is a very long title", 15),
+        render::truncate("this is a very long title", 15),
         "this is a ve..."
     );
 }
 
 #[test]
 fn truncate_handles_exact_length() {
-    assert_eq!(truncate_with_ellipsis("exactly10!", 10), "exactly10!");
+    assert_eq!(render::truncate("exactly10!", 10), "exactly10!");
 }
 
 #[test]
 fn relative_time_formats_correctly() {
     let now = now_ms();
 
-    assert_eq!(format_relative_time(now - 30_000), "just now");
-    assert_eq!(format_relative_time(now - 120_000), "2 min ago");
-    assert_eq!(format_relative_time(now - 7_200_000), "2 hours ago");
-    assert_eq!(format_relative_time(now - 172_800_000), "2 days ago");
+    assert_eq!(render::format_relative_time(now - 30_000), "just now");
+    assert_eq!(render::format_relative_time(now - 120_000), "2 min ago");
+    assert_eq!(render::format_relative_time(now - 7_200_000), "2 hours ago");
+    assert_eq!(
+        render::format_relative_time(now - 172_800_000),
+        "2 days ago"
+    );
 }
 
 #[test]
 fn format_labels_empty() {
-    assert_eq!(format_labels(&[], 2), "");
+    assert_eq!(render::format_labels(&[], 2), "");
 }
 
 #[test]
 fn format_labels_single() {
-    assert_eq!(format_labels(&["bug".to_string()], 2), "[bug]");
+    assert_eq!(render::format_labels(&["bug".to_string()], 2), "[bug]");
 }
 
 #[test]
 fn format_labels_multiple() {
     let labels = vec!["bug".to_string(), "urgent".to_string()];
-    assert_eq!(format_labels(&labels, 2), "[bug, urgent]");
+    assert_eq!(render::format_labels(&labels, 2), "[bug, urgent]");
 }
 
 #[test]
@@ -52,7 +57,7 @@ fn format_labels_overflow() {
         "wip".to_string(),
         "blocked".to_string(),
     ];
-    assert_eq!(format_labels(&labels, 2), "[bug, urgent +2]");
+    assert_eq!(render::format_labels(&labels, 2), "[bug, urgent +2]");
 }
 
 #[test]