Support SQLite searching

db/migrate/20251112093037_create_search_indices.rb

@@ -1,5 +1,8 @@
 class CreateSearchIndices < ActiveRecord::Migration[8.2]
   def up
+    # Skip for SQLite - it doesn't use these tables
+    return if connection.adapter_name == "SQLite"
+
     16.times do |i|
       create_table "search_index_#{i}".to_sym, id: :uuid, charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci" do |t|
         t.string :searchable_type, null: false
@@ -17,6 +20,9 @@ class CreateSearchIndices < ActiveRecord::Migration[8.2]
   end
 
   def down
+    # Skip for SQLite - it doesn't use these tables
+    return if connection.adapter_name == "SQLite"
+
     16.times do |i|
       drop_table "search_index_#{i}".to_sym
     end

db/migrate/20251113190256_create_search_record_shards.rb

@@ -2,6 +2,9 @@ class CreateSearchRecordShards < ActiveRecord::Migration[8.2]
   SHARD_COUNT = 16
 
   def change
+    # Skip for SQLite - it uses a single search_records table instead
+    return if connection.adapter_name == "SQLite"
+
     # Create 16 sharded search_records tables
     SHARD_COUNT.times do |shard_id|
       create_table "search_records_#{shard_id}", id: :uuid do |t|

db/migrate/20251120110206_add_search_records.rb

@@ -0,0 +1,37 @@
+class AddSearchRecords < ActiveRecord::Migration[8.2]
+  def up
+    return unless connection.adapter_name == "SQLite"
+
+    # Create regular table with integer primary key for FTS5 rowid compatibility
+    create_table :search_records do |t|
+      t.uuid :account_id, null: false
+      t.string :searchable_type, null: false
+      t.uuid :searchable_id, null: false
+      t.uuid :card_id, null: false
+      t.uuid :board_id, null: false
+      t.string :title
+      t.text :content
+      t.datetime :created_at, null: false
+
+      t.index [:searchable_type, :searchable_id], unique: true
+      t.index :account_id
+    end
+
+    # Create FTS5 virtual table using Porter stemmer
+    # No triggers needed - Searchable concern handles sync via callbacks
+    execute <<-SQL
+      CREATE VIRTUAL TABLE search_records_fts USING fts5(
+        title,
+        content,
+        tokenize='porter'
+      )
+    SQL
+  end
+
+  def down
+    return unless connection.adapter_name == "SQLite"
+
+    execute "DROP TABLE IF EXISTS search_records_fts"
+    drop_table :search_records, if_exists: true
+  end
+end