Add share cards

api/internal/store/blocks.go

@@ -126,7 +126,7 @@ func (s *BlockStore) Close() error {
 	return s.db.Close()
 }
 
-// InsertBlock is idempotent — duplicate heights are ignored so replayed
+// InsertBlock is idempotent, duplicate heights are ignored so replayed
 // log events after a restart don't trip the primary key constraint.
 // Returns (true, nil) if a new row was actually inserted, (false, nil)
 // if the height was already present (replay or duplicate).
@@ -247,7 +247,7 @@ func (s *BlockStore) Recent(limit int) ([]Block, error) {
 
 // BlocksNeedingEnrichment returns blocks whose hash or reward is still
 // unset and that were found within the lookback window. Older entries
-// are ignored — if bitcoind couldn't tell us about a day-old block,
+// are ignored, if bitcoind couldn't tell us about a day-old block,
 // retrying will keep failing.
 func (s *BlockStore) BlocksNeedingEnrichment(since time.Time) ([]Block, error) {
 	rows, err := s.db.Query(
@@ -300,7 +300,7 @@ func (s *BlockStore) MarkOrphaned(height int64, at time.Time) error {
 
 // UnmarkOrphaned clears the orphaned_at stamp set by MarkOrphaned.
 // Used to correct false positives caused by a network switch: a block
-// found on testnet is not "orphaned" when the node switches to mainnet —
+// found on testnet is not "orphaned" when the node switches to mainnet,
 // it simply belongs to a different chain and must not be compared against
 // mainnet's canonical history.
 func (s *BlockStore) UnmarkOrphaned(height int64) error {
@@ -326,7 +326,7 @@ func (s *BlockStore) UnmarkOrphanedStampChain(height int64, chain string) error
 
 // StampChain sets the chain field on a block without touching orphaned_at.
 // Used when the reconcile loop determines a block belongs to a different
-// network — the block is not orphaned (a reorg), it just doesn't belong
+// network, the block is not orphaned (a reorg), it just doesn't belong
 // to the current chain.
 func (s *BlockStore) StampChain(height int64, chain string) error {
 	_, err := s.db.Exec(

api/internal/store/blocks_test.go

@@ -201,14 +201,14 @@ func TestMigrate_AddsChainColumn(t *testing.T) {
 	}
 	db.Close()
 
-	// Open via our store — migrate() must add the chain column.
+	// Open via our store, migrate() must add the chain column.
 	s, err := Open(f.Name())
 	if err != nil {
 		t.Fatalf("Open after migration: %v", err)
 	}
 	defer s.Close()
 
-	// Insert a block with a chain value — would fail if migration didn't add
+	// Insert a block with a chain value, would fail if migration didn't add
 	// the column.
 	inserted, err := s.InsertBlock(Block{
 		Height:  1000,