Introduce commitment finality and different PTR transfer mechanisms

[buffrr]

Breaking Changes:

• Commitments now require 144-block finality window before confirmation
• Non-finalized commitments are replaced when new ones are submitted
• PTR database has been updated.

Updates:

• Support commitment rollback (if not finalized)
• Enable batch commitment submission for multiple spaces in single transaction
• Implement dual PTR transfer modes:
  • Index-preserving transfers: PTR spent at input N creates output at index N when values match (enables operator-assisted transfers)
  • Standard transfers: Maintains PTR tradability similar to spaces when values don't match. input N, output N+1

• Trust anchors file now includes ptrs_root and spaces_root

RPC updates:

• Support for PTR indexing now works with the same --block-index flag
• New RPC command getptrblockmeta: returns something like this:

{
    "jsonrpc": "2.0",
    "result": {
        "hash": "000000001fb8d5f7d9ddb2efc13255946d870954cabcbb5d510a86c8b6ccc468",
        "height": 105986,
        "tx_meta": [
            {
                "txid": "951c4172472a2f7d30ccd3bc30167da9633b56dc937d8e890a6a02fcb578d20c",
                "spends": [
                    0
                ],
                "creates": [
                    {
                        "n": 1,
                        "id": "sptr1r5vd6za4rmmdwy2urtqs0w3rq5ja6ar5p7ak7fcmseu64fn37y0qg9e9q3",
                        "data": null,
                        "value": 1007,
                        "script_pubkey": "5120c740369227c9090a3de4fb9dbf1fc13a2f74f4b5d4c961c147fedde2c0352751"
                    }
                ],
                "commitments": {
                    "@112": {
                        "state_root": "d513cb28dd4806e4386c632bfdcf12c324c51821a6b9d1ff909e97423a1372e2",
                        "prev_root": null,
                        "history_hash": "d513cb28dd4806e4386c632bfdcf12c324c51821a6b9d1ff909e97423a1372e2",
                        "block_height": 105986
                    }
                },
                "revoked_commitments": [],
                "revoked_delegations": [],
                "new_delegations": []
            }
        ]
    },
    "id": 5
}

Plus more tests.

[buffrr]

New updates to the RPC structure:

Examples:

{
    "jsonrpc": "2.0",
    "result": {
        "hash": "0000000000000000440b372e79bd79b6fddcfce6c0b45c2da78d34fcfc907b41",
        "height": 105016,
        "tx_meta": [
            {
                "txid": "476c1aa6d3a92ec70d2e0fef8575eab74538e1cbb344a94bc4c2abaca62b02a1",
                "spends": [
                    1
                ],
                "creates": [],
                "commitments": [],
                "revoked_commitments": [],
                "revoked_delegations": [
                    {
                        "space": "@space",
                        "sptr": "sptr1ha6deqv7p0lp8f7qt3j4tym8dp4vgq36y7h4lvm2ltkh8ljz57hqpdj7j6"
                    }
                ],
                "new_delegations": [
                    {
                        "space": "@space",
                        "sptr": "sptr1yehmfzsu2rr7tsxd5d5ehflgmvww9twqflq2x5es8na728jtx66sfqlk06"
                    }
                ]
            },
            {
                "txid": "20887fdf1f585527fb3c90402b460a4d5c2b9cf4ad10bf78c1b9a4c2b77ce041",
                "spends": [],
                "creates": [],
                "commitments": [],
                "revoked_commitments": [],
                "revoked_delegations": [
                    {
                        "space": "@101",
                        "sptr": "sptr1tquvje06x2h47uqtf6eyktcme72ffycqrutty5ga0a6dk30xvkjqx08hrd"
                    }
                ],
                "new_delegations": [
                    {
                        "space": "@101",
                        "sptr": "sptr1xwfnwt72kr63hef8zhf85ngpzsnktar949u5dj8wc8fyw8jrx5sqcv9nnf"
                    }
                ]
            },
            {
                "txid": "806c2748e42179714896102bb105138e6ab9565340d91975a8350415b6b7746a",
                "spends": [],
                "creates": [],
                "commitments": [],
                "revoked_commitments": [],
                "revoked_delegations": [
                    {
                        "space": "@112",
                        "sptr": "sptr1qw9glc4chdk6t937s80wa4zuhrj93xkj5pp78uxeqeua9f29v3zq5xw8sh"
                    }
                ],
                "new_delegations": []
            },
            {
                "txid": "83c098e09619abf109cc1f1edbf085d13dbfe404ef7c454af1908847915bc853",
                "spends": [],
                "creates": [],
                "commitments": [],
                "revoked_commitments": [],
                "revoked_delegations": [
                    {
                        "space": "@111",
                        "sptr": "sptr1n69nqsgnq35hsp04wkju9sykj7smjzl7eskungf2gjn5j8xy688q9lklqk"
                    }
                ],
                "new_delegations": []
            }
        ]
    },
    "id": 5
}

and

{
    "jsonrpc": "2.0",
    "result": {
        "hash": "00000000ea9f7ddf48bcc5a4b050d6ca45503ffb80ed5ded5aa0428bb884dec0",
        "height": 109051,
        "tx_meta": [
            {
                "txid": "74337307d84253c31914f236b1314d9afeceda4783c3f467f25fb7232b4d7aa7",
                "spends": [
                    0
                ],
                "creates": [
                    {
                        "n": 1,
                        "id": "sptr1az4txmr6qp9qyp6m5rtg4vu6rx8z5l3f8wstf96kht9teyh4tz3qjfakjh",
                        "data": null,
                        "value": 1007,
                        "script_pubkey": "5120ff2c834ea3d5ecd3b7b80dadac517d0d56296799cd87db96d9ca102f684c7991"
                    }
                ],
                "commitments": [
                    {
                        "space": "@space",
                        "state_root": "74ae8295ca53465d2766fd52065e6bf1cbe511ef651dbe2fee38634b49abf120",
                        "prev_root": "218a9d0f6041aa54b785e7c850b00da6a1df544fb81456a13001d386cb02d57b",
                        "history_hash": "738007a5cffe70fe8565ca3b98507d29801813b7096c623d3564c8362c7e9df8",
                        "block_height": 109051
                    }
                ],
                "revoked_commitments": [
                    {
                        "space": "@space",
                        "state_root": "100a481b50e620829982e2af9c1ca2ecd0aac2d6d543da0bdc6667a951b137aa",
                        "prev_root": "218a9d0f6041aa54b785e7c850b00da6a1df544fb81456a13001d386cb02d57b",
                        "history_hash": "f6347a688ab01eaec8fa5690441acbfc3c6c4285e2609ee20e95f737bdec6dab",
                        "block_height": 109044
                    }
                ],
                "revoked_delegations": [],
                "new_delegations": []
            },
            {
                "txid": "d812ebd5122e68ad1b4af22b53baf280c50a66d848886b5b8c31af9f12c6af5e",
                "spends": [],
                "creates": [
                    {
                        "n": 0,
                        "id": "sptr1yvnr5dvpt5rwwtea2nrzyuzsfl5f44jwhk7734acvjlarymc0l9szm4nk0",
                        "data": null,
                        "value": 1007,
                        "script_pubkey": "51206454b5ddb90f4423011789b4c04f81a5e24a5a2c97725a288ce8539fcafc32e9"
                    }
                ],
                "commitments": [],
                "revoked_commitments": [],
                "revoked_delegations": [],
                "new_delegations": []
            }
        ]
    },
    "id": 5
}

[buffrr]

• Included additional RPC commands to create proofs for ptrs and commitments.
• Updated veritas to support verifying ptrs
• Add last update to sptr and changed the outpoint key in the database

[buffrr]

Added support for associating data with sptrs. The setrawfallback command now accepts either a space or an sptr as input.
This completes the changes for this PR.