fix: change some names and add necessary fields to indexing agreements

[pcarranzav]

• Changed the database table for dips to indexing_agreements
• Changed some field names for consistency (camelCase)
• Added pricePerEntity to dips vouchers
• Changed the types used for network names and addresses
• Added a current allocation id to indexing agreements (will be used by the indexer agent)

[coveralls]

Pull Request Test Coverage Report for Build 13168522030

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 224 of 288 (77.78%) changed or added relevant lines in 5 files are covered.
• 397 unchanged lines in 11 files lost coverage.
• Overall coverage decreased (-0.1%) to 78.703%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
crates/dips/src/server.rs	0	16	0.0%
crates/dips/src/lib.rs	156	180	86.67%
crates/dips/src/proto/graphprotocol.gateway.dips.rs	0	24	0.0%

Files with Coverage Reduction	New Missed Lines	%
crates/dips/src/lib.rs	1	91.82%
crates/tap-agent/src/tap/context/escrow.rs	1	57.14%
crates/dips/src/server.rs	2	0.0%
crates/tap-agent/src/tap/context/rav.rs	14	84.76%
crates/tap-agent/src/test.rs	15	96.98%
crates/tap-agent/src/tap/context/receipt.rs	16	87.63%
crates/tap-agent/src/tap/context.rs	30	51.61%
crates/service/src/tap/receipt_store.rs	50	76.85%
crates/tap-agent/src/agent/sender_accounts_manager.rs	55	86.21%
crates/tap-agent/src/agent/sender_allocation.rs	62	89.89%

Totals
Change from base Build 13109844496:	-0.1%
Covered Lines:	7328
Relevant Lines:	9311

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💛 - Coveralls

[pcarranzav]

Back to Draft as I'm adding a few more changes