tbc: change database to Larry

[AL-CT]

Summary
Migrates tbcd database from leveldb to Larry.

While functionality remains the same, the tbcd database implementation no longer utilizes leveldb directly. It instead uses a larry multidb, which separates each database table into its own file, similarly to the original pool implementation. Furthermore, multidb allows us to easily switch the underlying KV database for each of the tables. However, switching from using leveldb to a dynamic framework will require a database upgrade, and thus was left for a future PR.

This change also allows us to eliminate the need for multiple database interfaces so all tbcd related components were moved to the appropriate tbcd > level package, simplifying the old package and file structure from:

- database/
   ├─ level/
   │   └─ level.go
   ├─ tbcd/
   │   ├─ level/
   │   │   └─ level.go
   │   └─ database.go
   └─ database.go

To the following:

- database/
   └─ tbcd/
       ├─ level/
       │   └─ level.go
       └─ database.go

Changes

• Replace leveldb with multidb.
• Replace old leveldb code with larry API compliant replacements.
• Remove the database package interface, and merge it with the tbcd database interface.
• Remove the isolated level database code and merge it with the tbcd database implementation.

Related Future Changes

• Database upgrade to allow dynamic database engines for each table.
• Integrated replication system to provide distributed tbcd database nodes.

[codecov]

Codecov Report

❌ Patch coverage is 47.17949% with 309 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
database/tbcd/level/level.go	46.06%	200 Missing and 40 partials ⚠️
database/tbcd/level/upgrade.go	52.56%	28 Missing and 9 partials ⚠️
database/tbcd/database.go	0.00%	15 Missing ⚠️
service/tbc/tbc.go	63.33%	8 Missing and 3 partials ⚠️
service/tbc/rpc.go	71.42%	4 Missing ⚠️
internal/testutil/mock/tbc.go	0.00%	1 Missing ⚠️
service/tbc/indexer.go	0.00%	0 Missing and 1 partial ⚠️

📢 Thoughts on this report? Let us know!

[ClaytonNorthey92]

let's run this against localnet, running here: https://github.com/hemilabs/heminetwork/actions/runs/20999721117

[ClaytonNorthey92]

localnet test passing 👍