docs: restore the agent artifacts to the setup skill's templates

[lesnik512]

Brings this repo's agent artifacts back to the setup skill's seed templates. They had drifted —
sections renamed and reordered, wording rephrased, and in places an older copy of the template than
the skill now ships (for example issue-tracker.md predates the wayfinding section).

Template-owned wording is restored verbatim. Anything the template has no slot for is kept: sections
this repo added are carried over unchanged, and repo-specific facts inside template sections are
preserved rather than reset away.

AGENTS.md moves from a bulleted variant to the block the skill writes: one ### sub-block per
artifact, each a one-line summary and a pointer.

[github-actions]

Benchmark

Details

Benchmark suite	Current: d193811	Previous: f53a2e1	Ratio
benchmarks/test_guard_by_type.py::test_g16_resolve_by_type	6355254.937810982 iter/sec (stddev: 7.296277465135752e-9)	4008716.7139152545 iter/sec (stddev: 1.9526459256075053e-8)	0.63
benchmarks/test_guard_by_type.py::test_g17_resolve_by_type_large_registry	6546308.850718286 iter/sec (stddev: 4.108753878463413e-9)	4002954.6608790187 iter/sec (stddev: 1.834363416516924e-8)	0.61
benchmarks/test_guard_cold.py::test_g8_cold_first_resolve	18408.782338830606 iter/sec (stddev: 0.00022496973026435468)	14663.075193998178 iter/sec (stddev: 0.00005110617369571044)	0.80
benchmarks/test_guard_cold.py::test_g8b_cold_first_resolve_cached	17339.444332141607 iter/sec (stddev: 0.000036656199600867914)	13501.676289143441 iter/sec (stddev: 0.00010503891395450804)	0.78
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[1]	771.5885644658944 iter/sec (stddev: 0.00004884646926942077)	559.8119238345388 iter/sec (stddev: 0.00003580070961015898)	0.73
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[2]	691.3378687458822 iter/sec (stddev: 0.00017990667120351526)	520.2715003297554 iter/sec (stddev: 0.00003600995859571861)	0.75
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[4]	633.3699569469682 iter/sec (stddev: 0.00011719106665009997)	463.06805823417596 iter/sec (stddev: 0.000045733992471508904)	0.73
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[1]	2039.62553902522 iter/sec (stddev: 0.00013410299425019293)	1693.2622667306164 iter/sec (stddev: 0.00018378456685557866)	0.83
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[2]	1553.2858999564764 iter/sec (stddev: 0.0001664356714906532)	1337.3808123484953 iter/sec (stddev: 0.00021527138900944947)	0.86
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[4]	997.6449676017261 iter/sec (stddev: 0.0013151060052700753)	981.3799029046831 iter/sec (stddev: 0.00021982603159610456)	0.98
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[1]	2013.8143975663293 iter/sec (stddev: 0.00015079975563196568)	1394.8814383915185 iter/sec (stddev: 0.0012667395613593728)	0.69
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[2]	1521.1178309599966 iter/sec (stddev: 0.0001709270502233108)	1206.420072993767 iter/sec (stddev: 0.0002144804337044107)	0.79
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[4]	929.6398298725618 iter/sec (stddev: 0.0001705052359176362)	803.8248397331134 iter/sec (stddev: 0.00023997103152535411)	0.86
benchmarks/test_guard_lifecycle.py::test_g6_build_child_container	966106.0997120267 iter/sec (stddev: 4.408197603401048e-8)	631812.2789709579 iter/sec (stddev: 4.0571050420416625e-7)	0.65
benchmarks/test_guard_lifecycle.py::test_g6b_build_child_container_auto_scope	922871.2008880093 iter/sec (stddev: 7.038305119787374e-8)	670701.6187811883 iter/sec (stddev: 1.4003308568796552e-7)	0.73
benchmarks/test_guard_lifecycle.py::test_g7_request_lifecycle_batch	3095.7728771042944 iter/sec (stddev: 0.000013785242193648506)	2415.5489957757927 iter/sec (stddev: 0.00004772548532498232)	0.78
benchmarks/test_guard_lifecycle.py::test_g7c_event_loop_floor_control	91175.68206737062 iter/sec (stddev: 9.764945542926372e-7)	59927.89442308179 iter/sec (stddev: 0.0000018989454809373808)	0.66
benchmarks/test_guard_lifecycle.py::test_g13_teardown_at_scale	62490.12057756 iter/sec (stddev: 0.000001296996725824841)	48472.42033846654 iter/sec (stddev: 0.0000027275923161766305)	0.78
benchmarks/test_guard_resolve.py::test_g1_transient_resolve	3521039.04452408 iter/sec (stddev: 2.1502731901651036e-8)	2448331.1837258395 iter/sec (stddev: 2.9497962091729938e-8)	0.70
benchmarks/test_guard_resolve.py::test_g2_cached_resolve	6453854.264413666 iter/sec (stddev: 6.2979856673597284e-9)	4208553.700148116 iter/sec (stddev: 7.281670662069424e-9)	0.65
benchmarks/test_guard_resolve.py::test_g3_deep_chain	1205628.3917484814 iter/sec (stddev: 6.029464666223733e-8)	838441.0287513532 iter/sec (stddev: 7.3115375684965e-8)	0.70
benchmarks/test_guard_resolve.py::test_g4_wide_resolve	656274.9466538958 iter/sec (stddev: 2.9983074826364167e-7)	523589.3769229232 iter/sec (stddev: 3.136005223677715e-7)	0.80
benchmarks/test_guard_resolve.py::test_g5_cross_scope	2652949.67880204 iter/sec (stddev: 3.0646557973085774e-8)	1936306.3639297402 iter/sec (stddev: 2.690246632041959e-8)	0.73
benchmarks/test_guard_resolve.py::test_g9_context_resolve	1311442.8602726439 iter/sec (stddev: 1.525501084155935e-7)	1126466.0638758675 iter/sec (stddev: 1.287538608048745e-7)	0.86
benchmarks/test_guard_resolve.py::test_g12_override_active_resolve	1184238.2858013841 iter/sec (stddev: 8.92679038054456e-8)	863327.0414136122 iter/sec (stddev: 3.90518860048332e-8)	0.73
benchmarks/test_guard_resolve.py::test_g18_alias_hop	4378663.874303967 iter/sec (stddev: 1.1357497004492218e-8)	2845169.7325867177 iter/sec (stddev: 1.341588086924342e-8)	0.65
benchmarks/test_guard_validate.py::test_g10_validate_deep_chain	28097.273434826075 iter/sec (stddev: 0.0000380010824474226)	24142.93059166376 iter/sec (stddev: 0.00002869799403858704)	0.86
benchmarks/test_guard_validate.py::test_g11_validate_wide	18162.166827453213 iter/sec (stddev: 0.000021062842062690957)	14992.318685615899 iter/sec (stddev: 0.000028092805529772532)	0.83

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