Improve IndexCommand output: resolved uids, summary, honest --delete warning

[loevgaard]

What

setono:sylius-meilisearch:index printed only Index "%s" submitted for indexing. Now:

• Resolved uids up front. Each index prints the concrete Meilisearch uids it will write, across all scopes: Indexing products → products__fashion_web__en_us__usd, …. In the default (synchronous) setup this also makes clear the command is doing real work, not hanging.
• Honest --delete warning. Reworded to state the consequence explicitly: the live index is deleted first, so search returns no results for that index until reindexing completes; a plain reindex (without --delete) upserts in place and avoids the downtime.
• Summary after --wait. Once the Meilisearch tasks have finished (which is why it's printed after --wait), a table of document count per resolved uid is shown.

The per-batch mapped/filtered/invalid/indexed counts are emitted to the dedicated log channel by the indexer (#128) — those can't be aggregated back into the command process for an async run, so the command's summary reports the resulting document counts instead.

Testing

• IndexCommandTest::it_prints_the_resolved_uids_and_an_honest_delete_warning (via CommandTester): output names each resolved uid and the --delete warning explains the downtime.
• The existing createTasksQuery tests still pass.

Closes #131

---

Stacked on #162 (#129).

[codecov]

Codecov Report

❌ Patch coverage is 44.44444% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 48.55%. Comparing base (3b74c19) to head (f569bbb).

Files with missing lines	Patch %	Lines
src/Command/IndexCommand.php	44.44%	15 Missing ⚠️

Additional details and impacted files

@@                          Coverage Diff                          @@
##             issue-129-search-route-disabled     #163      +/-   ##
=====================================================================
+ Coverage                              47.14%   48.55%   +1.40%     
- Complexity                               777      781       +4     
=====================================================================
  Files                                    139      139              
  Lines                                   2503     2521      +18     
=====================================================================
+ Hits                                    1180     1224      +44     
+ Misses                                  1323     1297      -26     

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