feat(pxe)!: add source and block-range filtering to get_logs_by_tag

[nchamo]

Why

Constrained delivery introduces log tags that can be repeated across multiple logs and that only appear on private logs. The current get_logs_by_tag oracle returns at most one log per tag and always queries both private and public RPCs, which doesn't work for this use case:

• Repeated tags mean we need to return multiple logs per tag, not just the first match
• Without block-range filtering, re-scanning the same tag range returns previously seen logs — from_block/to_block let callers scope queries to new blocks only
• Some tags are private-only, so querying both RPCs is wasteful — a source filter lets callers specify private, public, or both

Our fix

• Extend LogRetrievalRequest with source, from_block, and to_block fields across the Noir-TS boundary
• Change fetchLogsByTag to return all matching logs per tag (LogRetrievalResponse[][]) instead of only the first match
• Add LogSource enum (private / public / public-and-private) following the repo's struct-based enum pattern, with validation on TS deserialization
• Block range uses half-open [fromBlock, toBlock) semantics to match AztecNode conventions
• Client-side filtering for now; push-down to the node layer is tracked separately (F-650)

Fixes F-657
Fixes #15052

[nchamo]

I would have expected this to be 12 (the version we decided protocol contracts were going to use), but apparently we are keeping it up to date with PXE's version