Summary

• Start TUI Program Run shimmer synchronously on press, before dirty-buffer save RPCs.
• Recompute optimistic pending after save/normalization and send explicit ProgramExecuteParams.shimmer from the TUI.
• Add CLI and daemon regressions for dirty-buffer optimistic seeding and explicit full re-run shimmer over edited blocks.

Web client note: no web changes needed; programRun() already passes params.shimmer = optimistic.shimmer for execute parity.

Verification

• cargo build
• cargo test -p agentd-cli --bin construct
• cargo test -p agentd --lib program
• cargo test --test program_view from crates/e2e