logging: compile out LOG_TRACE by default, demote chatty DEBUG lines, drop redundant logs (#11391)

* logging: gate LOG_TRACE behind MESHTASTIC_TRACE_LOGGING, drop redundant reclock logs

LOG_TRACE now compiles out by default so trace-level diagnostics cost no
flash; enable with -DMESHTASTIC_TRACE_LOGGING. Portduino keeps it on for
the traceFilename packet-trace feature.

Remove the 66 caller-side I2C reclock/restore log lines in the telemetry
sensors: ReClockI2C::setClock/restoreClock already log both frequencies
internally (now at trace level, since they fire every sensor read).

Also unify near-duplicate literals (colon/case/punctuation variants) so
linker string dedup applies, and drop an information-free bare 'done'.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

* logging: demote chatty per-packet/per-poll DEBUG lines to trace level

With LOG_TRACE compiled out by default, per-iteration chatter (packet
bookkeeping, sensor poll values, e-ink refresh reasons, GPS pin states,
UI runState traces) now costs no flash on device builds while remaining
one -DMESHTASTIC_TRACE_LOGGING away. 108 lines demoted, 4 information-
free lines removed; failure paths, drop reasons, and one-time init logs
all stay at debug level.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

* logging: address CodeRabbit review on trace-gate PR

- GPS: pass serial-derived buffers as %s args, never as format strings
  (untrusted bytes could contain % directives)
- 0x%08x for packet id / NodeNum per convention (Router, CannedMessage,
  NeighborInfo); unsigned casts for size_t args; %u for uint32_t delta
- EInk: async full-refresh begin/complete back to DEBUG (rare state
  transitions); per-frame SKIPPED lines stay trace

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

* logging: gate trace on the flag's value, not its presence

-DMESHTASTIC_TRACE_LOGGING=0 previously *enabled* trace logging because
the gate tested definedness. The flag now defaults per-platform
(portduino 1, else 0) and both backends test the value, so =0 disables,
=1 or a bare -D enables. Also cast tx_after-millis() to uint32_t for %u
(millis() is unsigned long on native).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

* logging: clang-format rewrap after specifier widening

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

* Even fewer bytes!

* logging: keep compile-gated debug lines at debug level; fix native-suite-count

Lines already inside default-off #ifdef blocks (GPS_DEBUG,
DEBUG_LOOP_TIMING) cost no flash and should stay visible at debug level
when their gate is enabled, rather than also requiring
MESHTASTIC_TRACE_LOGGING.

test/native-suite-count lags the two test_event_channel_* suites added
by #11045 (develop's Native Suite Count check has the same mismatch);
bump 46 -> 47.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

* gps: route GPS_DEBUG diagnostics through a LOG_DEBUG_GPS() macro (#11414)

Replaces 27 log-only #ifdef GPS_DEBUG blocks across GPS.cpp,
PositionModule, MeshService, and GPSStatus.h with a single-line
LOG_DEBUG_GPS() call (src/gps/GPSLog.h, modeled on LOG_MIGRATION:
value-gated, ((void)0) when off). Blocks containing declarations,
control flow, hexDump, or nested conditionals keep an explicit
'#if GPS_DEBUG' guard. RTC.cpp's per-reading raw time dumps and
per-candidate rejection chatter fold under the same gate; quality
transitions and boot-time seeding stay at debug.

Also fixes the '// define GPS_DEBUG' missing-# typo in two variant
headers and updates all seven commented examples to the value form
('#define GPS_DEBUG 1') required by the value-based gate.


Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

Co-authored-by: Claude <noreply@anthropic.com>

* gps: declare RTC gmtime result as pointer to const (cppcheck)

With the setTime debug dump gated behind GPS_DEBUG, all remaining uses
of t are reads; cppcheck (constVariablePointer) now flags it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LBiZc9sfPrH1MZ2L3Fxgt1

---------

Co-authored-by: Claude <noreply@anthropic.com>

.github/copilot-instructions.md

@@ -332,6 +332,7 @@ firmware/
 
 - Follow existing code style - run `trunk fmt` before commits
 - Prefer `LOG_DEBUG`, `LOG_INFO`, `LOG_WARN`, `LOG_ERROR` for logging
+- **Three logging tiers for diagnostics.** `LOG_TRACE` is the per-packet/per-poll firehose - compiled out by default (`MESHTASTIC_TRACE_LOGGING=1` enables; always on for portduino). Subsystem bring-up detail routes through a per-subsystem gate macro instead, e.g. `LOG_DEBUG_GPS(...)` in `src/gps/GPSLog.h` (`GPS_DEBUG=1` enables; costs no flash when off) - model new subsystem gates on it or on `LOG_MIGRATION` (`src/mesh/WarmNodeStore.h`): `#ifndef` value-default, `#if SYM` value test, `((void)0)` off-branch. Genuine anomalies stay unconditional `LOG_WARN`/`LOG_ERROR`.
 - **Format node IDs and packet IDs as `0x%08x` in logs.** This covers `NodeNum`/`PacketId` and the `uint32_t` packet fields `from`, `to`, `id`, `dest`, `source`, `request_id`, and `node_id`. They are 32-bit, so 8 hex digits is exact - `%08x` never truncates or leaves a value ragged. Do **not** use `%x` (variable width) or `%0x` (a no-op typo for `%08x` - the `0` flag does nothing without a width). User-facing display uses `!%08x` (the `!xxxxxxxx` convention), e.g. `Applet::hexifyNodeNum`.
 - **Do not zero-pad one-byte values to 8.** `next_hop`, `relay_node`, and the next-hop hint are `uint8_t` last-byte route hints, and `channel` is a one-byte hash/index - log these as `0x%x` (or `%d`). Padding a byte to `0x000000ab` falsely implies a full node number. The same goes for I2C addresses, register values, flags/bitmasks, and error/reason codes: they are not IDs, so leave them `0x%x`.
 - Use `assert()` for invariants that should never fail