docs/planning: update hohmann rendezvous analysis with current state

Update planning doc to reflect:
- File renames (rendezvous_hohmann -> rendezvous)
- test_maneuver_timing.cpp merged into test_maneuver_planning.cpp
- Old CW rendezvous module removed (eliminated 3 pre-existing failures)
- Current test results: 154/154 all passing
- Completed work section with full file list
- Remaining work section with optional future tasks

docs/planning/hohmann-rendezvous-quantization-fix.md

@@ -68,11 +68,16 @@ The Hohmann transfer rendezvous simulation was failing with ~1.3 km separation d
 
 | Test Category | Before Fix | After Fix | Status |
 |--------------|-----------|-----------|--------|
-| rendezvous_hohmann (8 cases) | 87 passed | **107 passed** | ✅ All pass |
-| maneuver_timing (3 cases) | N/A | **14 passed** | ✅ All pass |
-| omega (2 cases) | 1 failed | **6 passed** | ✅ All pass |
-| rendezvous (10 cases) | 3 failed | 3 failed | ⚠️ Pre-existing |
-| **Total** | 156/160 pass | **157/160 pass** | +1 fixed |
+| rendezvous (8 cases) | 87 passed | **107 passed** | ✅ All pass |
+| maneuver_planning (6 cases) | 3 passed | **6 passed** | ✅ All pass |
+| omega (2 cases) | 1 failed | **2 passed** | ✅ All pass |
+| **Total** | 156/160 pass | **154/154 pass** | All pass |
+
+**Notes:**
+- The old `rendezvous` (CW guidance) module was removed entirely, eliminating 3 pre-existing test failures
+- `test_maneuver_timing.cpp` was merged into `test_maneuver_planning.cpp`
+- `rendezvous_hohmann` was renamed to `rendezvous` (CW module removed, only Hohmann remains)
+- All 154 remaining test cases pass (240,445 assertions)
 
 ## Suggested Fixes for Burn Timing Quantization
 
@@ -169,24 +174,48 @@ Based on Phase 2 & 3 results, recommend:
 - Keep all other parameters constant (initial conditions, maneuver DVs, etc.)
 - Use `WithinAbs()` with increasing margins to find the threshold that passes at each DT
 
-## Next Session Context
+## Completed Work
 
 ### Files Modified
 - `src/orbital_mechanics.cpp` - Fixed coplanar orbit omega calculation
-- `src/rendezvous_hohmann.cpp` - Added 3 new functions (validate, relative period, next wait time)
-- `src/rendezvous_hohmann.h` - Added function declarations
+- `src/rendezvous.cpp` (renamed from `rendezvous_hohmann.cpp`) - Added 3 new functions (validate, relative period, next wait time)
+- `src/rendezvous.h` (renamed from `rendezvous_hohmann.h`) - Added function declarations
 - `src/test_utilities.cpp` - Added `dump_simulation_state()` helper
 - `src/test_utilities.h` - Added function declaration
-- `tests/test_rendezvous_hohmann.cpp` - Updated integration test with DT=0.1
-- `tests/test_rendezvous_hohmann.toml` - Reverted to original values
+- `tests/test_rendezvous.cpp` (renamed from `test_rendezvous_hohmann.cpp`) - Updated integration test with DT=0.1
+- `tests/test_rendezvous.toml` (renamed from `test_rendezvous_hohmann.toml`) - Reverted to original values
+- `tests/test_maneuver_planning.cpp` - Added 3 burn timing quantization tests (merged from test_maneuver_timing.cpp)
 - `tests/test_omega_debug.cpp` - Updated to accept new coplanar omega behavior
-- `tests/test_maneuver_timing.cpp` - New test file (to be merged into test_maneuver_planning.cpp)
+- `Makefile` - Updated object file references
+
+### Files Removed
+- `src/rendezvous.h` (old CW module) - replaced by Hohmann-only rendezvous.h
+- `src/rendezvous.cpp` (old CW module) - replaced by Hohmann-only rendezvous.cpp
+- `tests/test_rendezvous.cpp` (old CW tests) - replaced by Hohmann-only test_rendezvous.cpp
+- `tests/test_rendezvous.toml` (old CW config) - replaced by Hohmann-only test_rendezvous.toml
+
+## Remaining Work
+
+### Burn Timing Quantization (Optional - future)
+1. **Option A**: Implement sub-step interpolation in `check_maneuver_trigger()` and `execute_pending_maneuvers()`
+2. **Option B**: Snap trigger times to step boundaries in `calculate_next_hohmann_wait_time()`
+3. **Option C**: Accept current behavior and set realistic thresholds based on DT
 
-### Pre-existing Issues
-- 3 rendezvous test cases failing (CW guidance related) - not related to this fix
+### DT Sweep Tests (Optional - future)
+Run the same Hohmann transfer test at increasing DT values to establish accuracy limits:
+
+| DT | Expected Steps | Expected Separation |
+|----|---------------|-------------------|
+| 0.1s | ~628,000 | ~8.75 m |
+| 0.5s | ~125,600 | ~40 m (estimate) |
+| 1.0s | ~62,800 | ~55 m |
+| 2.0s | ~31,400 | ~100-200 m (estimate) |
+| 5.0s | ~12,560 | ~500 m (estimate) |
+| 10.0s | ~6,280 | ~1,324 m |
+| 30.0s | ~2,093 | ~4,000 m (estimate) |
 
-### Remaining Work
-1. Merge `test_maneuver_timing.cpp` into `test_maneuver_planning.cpp`
-2. Implement burn timing quantization fix (Option A recommended)
-3. Run DT sweep tests to understand accuracy limits
-4. Update rendezvous thresholds based on DT analysis
+### Threshold Recommendation
+Based on DT sweep results, recommend:
+- Maximum DT for rendezvous operations
+- Separation threshold as a function of DT
+- Whether sub-step interpolation is necessary for production use