CUR2-2667: remove optimism bridge mapping deps

[tomfutago]

Summary

• Remove Optimism price metadata's dependency on prices_optimism_tokens_bridged, leaving prices_optimism_tokens curated-only.
• Remove tokens_optimism_erc20_bridged_mapping from generated Optimism ERC20 metadata.
• Add explicit ERC20 curated entries for price-curated Optimism tokens that previously only reached tokens.erc20 through bridge-generated metadata.

Test plan

• uv run dbt parse
• uv run dbt compile --select prices_optimism_tokens tokens_optimism_erc20_generated tokens_optimism_erc20_curated
• /review / Bugbot: no bugs found
• 7709272: candidate price rows have 0 duplicate contracts and 0 BRIGHT rows; removing bridge-derived prices drops 94 current production bridge-only rows intentionally.
• 7709273: candidate generated ERC20 has 0 bridge-source rows and all curated price rows are represented in candidate ERC20 metadata.
• 7709367: the 16 new ERC20 curated rows do not duplicate existing curated or generated sources.
• 7709539: row-count summary for price/generated ERC20 metadata removed by this change.
• 7709549: net canonical Optimism ERC20 metadata removal after curated additions.

Regression test

• 7709644: compares actual PR CI relations against production. Results match expected diffs: prices_optimism_tokens removes 94 bridge-only contracts, tokens_optimism_erc20_generated removes 319 bridge-derived contracts, and tokens_optimism_erc20_curated adds 16 explicit contracts.
• 7709652: cross-model checks show 0 CI price duplicates, 0 BRIGHT price rows, 0 bridge-source generated rows, 0 price rows missing from CI ERC20 metadata, and 0 duplicate existing/generated sources among the 16 added curated rows.
• 7709659: canonical ERC20 net diff shows Optimism ERC20 metadata changes from 793 production contracts to 602 CI contracts: 202 prod-only removals and 11 CI-only additions at the canonical union level.

Made with Cursor

[tomfutago]

dbt regression test results

Overall status: pass, with expected diffs only.

Models compared against actual PR CI relations from dune_spellbook_ci__tmp_pr9768_27419778084_1:

• prices_optimism_tokens: prod 201, CI 107; 94 prod-only bridge-derived rows removed as intended; CI duplicate contracts 0.
• tokens_optimism_erc20_generated: prod 481, CI 162; 319 prod-only bridge-derived rows removed as intended; CI duplicate contracts 0.
• tokens_optimism_erc20_curated: prod 433, CI 449; 16 CI-only curated additions as intended; CI duplicate contracts 0.

Cross-model checks:

• CI price rows missing from CI ERC20 metadata: 0
• CI BRIGHT price rows: 0
• CI generated rows with token_mapping_source = 'l2 bridge mapping': 0
• Duplicate existing/generated sources among the 16 added curated rows: 0

Canonical Optimism ERC20 net diff:

• Prod canonical ERC20 contracts: 793
• CI canonical ERC20 contracts: 602
• Prod-only removals: 202
• CI-only additions: 11

Verification queries:

• Regression summary: https://dune.com/queries/7709644
• Cross-model checks: https://dune.com/queries/7709652
• Canonical ERC20 net diff: https://dune.com/queries/7709659