Fix metered update billing and dashboard cycles UX

[humandebri]

Summary

• Switch metered update billing from same-message canister cycle balance deltas to instruction counter deltas plus the 13-node update execution base fee.
• Optimize billed write paths by replacing full-database checksum scans for logical size refreshes with SQLite page-count/page-size reads.
• Compress database charge bookkeeping from balance SELECT + account UPDATE + ledger INSERT to UPDATE RETURNING + ledger INSERT while preserving overdraw and suspension behavior.
• Make OISY wallet popup cleanup non-fatal so disconnect failures do not mask connect, approve, or purchase errors.
• Clean up the dashboard/home database table: prioritize lifecycle status, shorten cycle balances, remove Registry/Open columns, make database names open the wiki, and keep Top up buttons from wrapping.

Testing

• CI=true pnpm --dir wikibrowser test
• CI=true pnpm --dir wikibrowser typecheck
• cargo test -p vfs-store
• cargo test -p vfs-runtime
• cargo test -p vfs-runtime logical_size
• cargo test -p vfs-runtime charge_database_update_reports_missing_cycle_account
• cargo test -p vfs-runtime zero_cycle_charge_skips_cycle_ledger
• cargo test -p vfs-canister instruction_charge
• cargo test -p vfs-canister write_nodes_records_instruction_charge_and_writes_nodes
• cargo test -p vfs-canister write_node_overdrawn_charge_consumes_balance_and_suspends_database
• git diff --check