chore: mark Ticket 1.5 as Done in epic tracker

Author: 0xfave

docs/epics/epic-1-foundation.md

@@ -173,7 +173,7 @@ Create `src/instruction.rs` with instruction discriminator constants (0-7) and w
 
 ### Ticket 1.5: Instruction Dispatcher (lib.rs + processor.rs)
 
-**Status:** Not Started
+**Status:** ✅ Done
 **Priority:** P0
 **Estimated Effort:** Medium
 
@@ -186,10 +186,10 @@ Wire up the Pinocchio entrypoint to dispatch instructions based on the first byt
 - `src/lib.rs` — Add `pub mod processor; pub mod instruction;`
 
 **Acceptance Criteria:**
-- [ ] `cargo check` passes
-- [ ] Entrypoint matches discriminator byte to correct handler
-- [ ] Unknown discriminator returns `ProgramError::InvalidInstructionData`
-- [ ] All 8 handlers compile with correct signatures
+- [x] `cargo check` passes
+- [x] Entrypoint matches discriminator byte to correct handler
+- [x] Unknown discriminator returns `ProgramError::InvalidInstructionData`
+- [x] All 8 handlers compile with correct signatures
 
 **Testing:** N/A (wiring only, tested via integration tests later)